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  • 11:14, 7 May 2020 Webref talk contribs created page Azurmalachite (Created page with "An intimate mixture or intergrowth of azurite and malachite, commonly massive and concentrically banded; used as an ornamental stone. Syn: azure malachite; azurite malachite....")
  • 11:14, 7 May 2020 Webref talk contribs created page Azurlite (Created page with "Chalcedony colored blue by chrysocolla; and used as a gemstone. Syn: azurchalcedony <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:14, 7 May 2020 Webref talk contribs created page Azurite malachite (Created page with "See: azurmalachite <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:13, 7 May 2020 Webref talk contribs created page Azurite (Created page with "# A monoclinic mineral, 2[Cu3 (OH)2 (CO3 )2 ]; forms vitreous azure crystals; a supergene mineral in oxidized parts of copper deposits associated with malachite; an ore of cop...")
  • 11:13, 7 May 2020 Webref talk contribs created page Azure stone (Created page with "A term applied to lapis lazuli (lazurite) and to other blue minerals such as lazulite and azurite. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:12, 7 May 2020 Webref talk contribs created page Azure spar (Created page with "See: azurite; lazulite. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:12, 7 May 2020 Webref talk contribs created page Azure quartz (Created page with "See: sapphire quartz <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:12, 7 May 2020 Webref talk contribs created page Azure malachite (Created page with "See: azurmalachite <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:12, 7 May 2020 Webref talk contribs created page Azure (Created page with "See: lapis lazuli; lazurite. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:11, 7 May 2020 Webref talk contribs created page Azurchalcedony (Created page with "See: azurlite <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:11, 7 May 2020 Webref talk contribs created page Azulinhas (Created page with "Small cloudy sapphires occuring with diamonds in Brazil. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:11, 7 May 2020 Webref talk contribs created page Aztec stone (Created page with "# A greenish variety of smithsonite. # A green variety of turquoise. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:11, 7 May 2020 Webref talk contribs created page Azorite (Created page with "A variety of altered zircon. See: zircon <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:10, 7 May 2020 Webref talk contribs created page Axstone (Created page with "A variety of nephrite jade. Also spelled axestone. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:09, 7 May 2020 Webref talk contribs created page Axotomous (Created page with "In crystallography, having cleavage perpendicular to an axis; said of minerals. Standard, 2 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:09, 7 May 2020 Webref talk contribs created page Axonometric projection (Created page with "A method of projection which has the advantage of containing a true plan, and can therefore be set up from drawings already in existence for other purposes. The plan is turned...")
  • 11:09, 7 May 2020 Webref talk contribs created page Axis of symmetry (Created page with "An imaginary line in a crystal, crystal structure, or crystal lattice, about which it may be rotated to an identical configuration. If identity occurs once during a complete r...")
  • 11:09, 7 May 2020 Webref talk contribs created page Axis of acoustic symmetry (Created page with "For many transducers, the three-dimensional directivity is such that it may be represented by the surface generated by rotating a two-dimensional directivity pattern about the...")
  • 12:00, 6 May 2020 Webref talk contribs created page Axiolite (Created page with "A term proposed by Zirkel for a variety of elongated spherulite in which there is an aggregation of minute acicular crystals arranged at right angles to a central axis rather...")
  • 12:00, 6 May 2020 Webref talk contribs created page Axinite (Created page with "# The mineral group ferroaxinite, magnesioaxinite, manganaxinite, and tinzenite. # Triclinic borosilicates with the formula A3 Al2 BSi4O15 (OH) where A = (Ca,Fe,Mg,Mn). Syn:...")
  • 11:59, 6 May 2020 Webref talk contribs created page Axial-plane separation (Created page with "The distance between axial surfaces of adjacent antiforms and synforms where the folds occur in the same layer or surface. AGI <br/>Source: Dictionary of Mining, Mineral, and...")
  • 11:59, 6 May 2020 Webref talk contribs created page Axial-plane foliation (Created page with "Foliation that developed parallel to the axial plane of a fold and perpendicular to the principal deformational pressure. AGI <br/>Source: Dictionary of Mining, Mineral, and...")
  • 11:59, 6 May 2020 Webref talk contribs created page Axial-plane folding (Created page with "Large-scale secondary folding of preexisting folds, in response to stresses that varied considerably from those that caused the original folding. The axial planes of the origi...")
  • 11:59, 6 May 2020 Webref talk contribs created page Axial-plane cleavage (Created page with "Cleavage that is closely related to the axial planes of folds in the rock, either being rigidly parallel to the axes, or diverging slightly on each flank (fan cleavage). Most...")
  • 11:58, 6 May 2020 Webref talk contribs created page Axial-flow fan (Created page with "# A type of mine fan in which the mine air enters along the axis parallel to the shaft and continues in this direction to the point of exhaust. The axial-flow fan may have fix...")
  • 11:58, 6 May 2020 Webref talk contribs created page Axial-flow compressor (Created page with "A compressor in which air is compressed in a series of stages as it flows axially through a decreasing tubular area. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and...")
  • 11:58, 6 May 2020 Webref talk contribs created page Axial trace (Created page with "The intersection of the axial plane of a fold with the surface of the Earth or any other specified surface. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:58, 6 May 2020 Webref talk contribs created page Axial stream (Created page with "# The main stream of an intermontane valley, which flows along the lowest part of the valley and parallel to its long dimension, in contradistinction to the streams that flow...")
  • 11:57, 6 May 2020 Webref talk contribs created page Axial ratio (Created page with "The lengths of crystallographic axes defined in terms of their ratios with, by convention, a set at unity where one axis is unique and b set at unity where all three axes are...")
  • 11:57, 6 May 2020 Webref talk contribs created page Axial priming (Created page with "A system for priming blast agents in which a core of priming material extends through most or all of the blasting agent charge length. <br/>Source: Dictionary of Mining, Mine...")
  • 11:57, 6 May 2020 Webref talk contribs created page Axial plane (Created page with "# A plane through a rock fold that includes the axis and divides the fold as symmetrically as possible. <br/>Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewo...")
  • 11:56, 6 May 2020 Webref talk contribs created page Axial line (Created page with "See: axis <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:56, 6 May 2020 Webref talk contribs created page Axial flow (Created page with "In pumping or in ventilation, the use of a propeller or impeller to accelerate the load along the axis of the impeller. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, a...")
  • 11:56, 6 May 2020 Webref talk contribs created page Axial figure (Created page with "# The interference figure that is obtained in convergent light when an optic axis of the mineral being observed in thin section or as a fragment coincides with the axis of the...")
  • 11:56, 6 May 2020 Webref talk contribs created page Axial element (Created page with "In crystallography, the ratio of a unit distance along a crystallographic axis and the corresponding angle between axes. Syn: lattice parameter <br/>Source: Dictionary of Mini...")
  • 11:55, 6 May 2020 Webref talk contribs created page Axial compression (Created page with "In experimental work with cylinders, a compression applied parallel with the cylinder axis. It should be used in an appropriate sense only in the interpretation of deformed ro...")
  • 11:55, 6 May 2020 Webref talk contribs created page Axial angle (Created page with "# The acute angle between the two optic axes of a biaxial crystal. Its symbol is 2V. AGI # The axial angle in air (symbol 2E) is the larger angle between the optic axes after...")
  • 11:33, 6 May 2020 Webref talk contribs created page Axes (Created page with "# Crystallographic directions through a crystal; used as lines of reference. Hurlbut # Reference coordinates a, b, c, in crystallography, crystallographic axes. # Directions...")
  • 11:30, 6 May 2020 Webref talk contribs created page AX (Created page with "Letter name specifying the dimensions of core, core barrels, and casing in the A-size and X-series wireline diamond drilling system having a core diameter of 30.1 mm and a hol...")
  • 11:30, 6 May 2020 Webref talk contribs created page Awaruite (Created page with "An isometric mineral, Ni2 Fe to Ni3 Fe . Syn: native nickel-iron <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:29, 6 May 2020 Webref talk contribs created page AW (Created page with "Letter name specifying the dimensions of bits, core barrels, and drill rods in the A-size and W-group wireline diamond drilling system having a core diameter of 30.1 mm and a...")
  • 11:29, 6 May 2020 Webref talk contribs created page Avicennite (Created page with "An isometric mineral, Tl2 O3 ; black; forms minute crystals. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:29, 6 May 2020 Webref talk contribs created page Average loading (Created page with "The average number of tons of a specified material to be carried by a conveyor per hour, based on total operating-shift tonnage. NEMA, 2 <br/>Source: Dictionary of Mining, Mi...")
  • 11:29, 6 May 2020 Webref talk contribs created page Average clause (Created page with "Eng. A clause that, in granting leases of minerals (coal, ironstone, and clay in particular), provides that lessees may, during every year of the term, make up any deficiency...")
  • 11:28, 6 May 2020 Webref talk contribs created page Average assay value (Created page with "See: assay value <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:28, 6 May 2020 Webref talk contribs created page Aventurine quartz (Created page with "See: aventurine <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:28, 6 May 2020 Webref talk contribs created page Aventurine glass (Created page with "A glass supersaturated with either iron, chromium, or copper oxide (or a combination of the oxides) that is melted and cooled under controlled conditions to cause the excessiv...")
  • 11:28, 6 May 2020 Webref talk contribs created page Aventurine feldspar (Created page with "Orthoclase, albite, or oligoclase that is more or less transparent, with fiery reflections from enclosed flat mineral particles, which are probably hematite or goethite. Sunst...")
  • 11:27, 6 May 2020 Webref talk contribs created page Aventurine (Created page with "# A glass containing opaque sparkling particles of foreign material, which is usually copper or chromic oxide. With copper particles, it is called gold aventurine, and with ch...")
  • 11:27, 6 May 2020 Webref talk contribs created page Aventurescence (Created page with "# A word used to describe the metallic spangled effect seen, in reflected light, in aventurine and aventurine feldspar. A sort of schiller but more scintillating. # A display...")
  • 11:27, 6 May 2020 Webref talk contribs created page Avanturine (Created page with "Alternate spelling of aventurine. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:27, 6 May 2020 Webref talk contribs created page Avalanche protector (Created page with "Guardplates that prevent loose material from sliding into contact with the wheels or tracks of a digging machine. Nichols, 1 <br/>Source: Dictionary of Mining, Mineral, and R...")
  • 11:26, 6 May 2020 Webref talk contribs created page Avalanche (Created page with "A large mass of snow, ice, soil, or rock, or mixtures of these materials, falling, sliding, or flowing very rapidly under the force of gravity. Velocities may sometimes exceed...")
  • 11:26, 6 May 2020 Webref talk contribs created page Available silica (Created page with "The amount of silica present in a flux that is not slagged by impurities in the flux itself. Newton, 1 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:26, 6 May 2020 Webref talk contribs created page Available relief (Created page with "# The vertical distance between the altitude of the original surface after uplift and the level at which grade is first attained. AGI # The relief that is available for erosi...")
  • 11:26, 6 May 2020 Webref talk contribs created page Available power loss (Created page with "The available power loss of a transducer connecting an energy source and an energy load is the transmission loss measured by the ratio of the source power to the output power...")
  • 11:25, 6 May 2020 Webref talk contribs created page Available power (Created page with "The rate at which a given source would deliver energy to a load having an impedance that is the conjugate of the source impedance is designated as the available power of that...")
  • 11:25, 6 May 2020 Webref talk contribs created page Available lime (Created page with "# Those constituents of a lime that enter into a desired reaction under the conditions of a specific method or process. ASTM # Represents the total free lime (CaO) content in...")
  • 11:25, 6 May 2020 Webref talk contribs created page Available energy (Created page with "That part of the total energy that can be usefully employed. In a perfect engine, that part which is converted to work. Strock, 2 <br/>Source: Dictionary of Mining, Mineral,...")
  • 11:25, 6 May 2020 Webref talk contribs created page Available alumina (Created page with "The theoretical amount of extractable aluminum oxide, Al2 O3 , present in a bauxite. The amount of alumina in a bauxite that is present in a form that allows it to be extracte...")
  • 11:24, 6 May 2020 Webref talk contribs created page Auxiliary ventilation (Created page with "A method of supplementing the main ventilating current in a mine by using a small fan to draw air from the main current and force it through canvas or metal pipe to some parti...")
  • 11:24, 6 May 2020 Webref talk contribs created page Auxiliary operations (Created page with "In metallurgy, diverse operations, such as storing in bins, conveying (by conveyors, feeders, elevators, or pumps), sampling, weighing, reagent feeding, and pulp distribution....")
  • 11:24, 6 May 2020 Webref talk contribs created page Auxiliary mineral (Created page with "In Johannsen's classification of igneous rocks, any light-colored, relatively rare mineral, or mineral occurring in small quantities, such as apatite, muscovite, corundum, flu...")
  • 11:24, 6 May 2020 Webref talk contribs created page Auxiliary fault (Created page with "A branch fault. A minor fault ending against a major fault. AGI <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:23, 6 May 2020 Webref talk contribs created page Auxiliary cylinder (Created page with "A cylinder, operated by compressed air, that is used to assist the main engine of a compressed-air shaker conveyor, esp. where the conveyor cannot develop a sufficient amount...")
  • 11:23, 6 May 2020 Webref talk contribs created page Auxiliary anode (Created page with "A supplementary anode placed in a position to raise the current density on a certain area of the cathode to get better plate distribution. ASM, 1 <br/>Source: Dictionary of M...")
  • 11:23, 6 May 2020 Webref talk contribs created page Auxiliary (Created page with "# Tools or other equipment, such as a pump, drill rods, casing, core barrel, bits, water swivel, safety clamp, etc., required for use with a drill machine to carry on specific...")
  • 11:22, 6 May 2020 Webref talk contribs created page Autunite (Created page with "# Ca(UO2)2(PO4)2 * 10-12H2O <br/>See meta-autunite. <br/>U = 45.4 percent to 48.2 percent. <br/>Color: Yellow. Common secondary mineral. <br/>Synonyms: calciumphosphoruranit,...")
  • 11:21, 6 May 2020 Webref talk contribs created page Autrometer (Created page with "# An automatic multielement-indexing X-ray spectrograph, capable of the qualitative and quantitative determinations of as many as 24 elements in a single sample. Choice of the...")
  • 11:20, 6 May 2020 Webref talk contribs created page Autotroph (Created page with "Organism capable of growth exclusively at the expense of inorganic nutrients. See also: chemolithotroph; photolithotroph. <br/>Source: Dictionary of Mining, Mineral, and Rela...")
  • 11:20, 6 May 2020 Webref talk contribs created page Autostoper (Created page with "A stoper or light compressed-air rock drill, mounted on an air-leg support that not only supports the drill but also exerts pressure on the drill bit. Nelson <br/>Source: Dic...")
  • 11:19, 6 May 2020 Webref talk contribs created page Autospray (Created page with "A device for controlling dust carried by loaded conveyors. A liquid medium is sprayed on the conveyor load only when moving and not when stationary, or when the belt is runnin...")
  • 11:19, 6 May 2020 Webref talk contribs created page Autopneumatolysis (Created page with "Autometamorphism involving the crystallization of minerals or the alteration of a rock by gaseous emanations originating in the magma or rock itself. CF: autometasomatism <br...")
  • 11:19, 6 May 2020 Webref talk contribs created page Automorphic-granular (Created page with "See: automorphic <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:19, 6 May 2020 Webref talk contribs created page Automorphic (Created page with "# Said of the holocrystalline texture of an igneous or metamorphic rock, characterized by crystals bounded by their own rational faces. Also said of a rock with such a texture...")
  • 11:19, 6 May 2020 Webref talk contribs created page Automolite (Created page with "A dark-green to nearly black variety of gahnite. Schaller <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:18, 6 May 2020 Webref talk contribs created page Autometasomatism (Created page with "Alteration of a recently crystallized igneous rock by its own last water-rich liquid fraction, trapped within the rock, generally by an impermeable chilled border. CF: autopne...")
  • 11:18, 6 May 2020 Webref talk contribs created page Autometamorphism (Created page with "# A process of recrystallization of an igneous rock under conditions of falling temperature, attributed to the action of its own volatiles, e.g., serpentinization of peridotit...")
  • 11:18, 6 May 2020 Webref talk contribs created page Automatic winding (Created page with "This term includes at least three different systems: (1) fully automatic winding in which no driver, banksman, or onsetter is employed; (2) pushbutton automatic winding, simil...")
  • 11:17, 6 May 2020 Webref talk contribs created page Automatic sprinkler (Created page with "A water sprinkling device closed by a metallic alloy that melts at a low temperature. In case of fire the alloy melts, releasing a water spray. These devices are used in wood-...")
  • 11:17, 6 May 2020 Webref talk contribs created page Automatic sampling (Created page with "Automatic removal of samples at timed intervals from a passing stream of ore, pulp, or solution. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:17, 6 May 2020 Webref talk contribs created page Automatic sampler (Created page with "An instrument designed to take samples of mine gases or water at predetermined times or intervals. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:17, 6 May 2020 Webref talk contribs created page Automatic recorder (Created page with "Appliance for recording the working time of machines such as cutter loaders, conveyors, etc. A vibrating type, fitted on the equipment itself, marks on a chart a straight line...")
  • 11:17, 6 May 2020 Webref talk contribs created page Automatic reclosing relays (Created page with "Relays used to automatically reclose electrically operated circuit breakers. They limit the duration of power failures in many instances where faults clear themselves quickly....")
  • 11:16, 6 May 2020 Webref talk contribs created page Automatic pumping (Created page with "An arrangement to stop and start a mine pump automatically by means of a float switch. Nelson <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:16, 6 May 2020 Webref talk contribs created page Automatic pump control (Created page with "The starting and stopping of a pump by a mechanism actuated by the level of water in the suction well or pump, or by the level or pressure of water in a discharge tank. BS, 10...")
  • 11:16, 6 May 2020 Webref talk contribs created page Automatic heat-treating machine (Created page with "See: Gilman heat-treating machine <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:16, 6 May 2020 Webref talk contribs created page Automatic feed sampler (Created page with "An automatic, timed sampling device used at mill feeds and other plants. Nelson <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:16, 6 May 2020 Webref talk contribs created page Automatic feed (Created page with "# A hydraulic-control system of valves that when once set and without the manual assistance of a drill runner will reduce or increase feed pressure applied to a drill stem as...")
  • 11:15, 6 May 2020 Webref talk contribs created page Automatic doors (Created page with "Air doors on a haulage road that are automatically operated by a passing vehicle or train of tubs, or other means. BS, 8 <br/>Source: Dictionary of Mining, Mineral, and Relat...")
  • 11:15, 6 May 2020 Webref talk contribs created page Automatic door (Created page with "# A mine door operated by pressure of the locomotive wheels on a switch along the rails approaching the doors, which closes the door automatically after the trip has passed. T...")
  • 11:15, 6 May 2020 Webref talk contribs created page Automatic dam (Created page with "See: boomer <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:14, 6 May 2020 Webref talk contribs created page Automatic cyclic winding (Created page with "A system of automatic winding in which the complete installation operates without human aid and winding continues automatically as long as coal is available at the shaft botto...")
  • 11:14, 6 May 2020 Webref talk contribs created page Automatic coupling (Created page with "A device that automatically couples cars when they bump together. Zern <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:14, 6 May 2020 Webref talk contribs created page Automatic clutch (Created page with "A clutch whose engagement is controlled by centrifugal force, vacuum, or other power without attention by the operator. Nichols, 1 <br/>Source: Dictionary of Mining, Mineral,...")
  • 11:13, 6 May 2020 Webref talk contribs created page Automatic clip (Created page with "An appliance for attaching and detaching mine trams or cars without manual effort. It is generally attached at inby clipping stations and detached at the shaft bottom. See als...")
  • 11:13, 6 May 2020 Webref talk contribs created page Automatic belt takeup (Created page with "A device used with certain types of belt conveyors for the taking up or storage of belt during reversible operation. Jones, 1 <br/>Source: Dictionary of Mining, Mineral, and...")
  • 11:13, 6 May 2020 Webref talk contribs created page Automatic ash analysis (Created page with "Analysis in which the coal sample passes first to a conditioning unit, which dries and grinds it, then to an X-ray analysis unit. The analysis is based on the difference in th...")
  • 11:13, 6 May 2020 Webref talk contribs created page Autolith (Created page with "# An inclusion in an igneous rock to which it is genetically related. CF: xenolith # In a granitoid rock, an accumulation of iron-magnesium minerals of uncertain origin. It ma...")
  • 11:12, 6 May 2020 Webref talk contribs created page Autointrusion (Created page with "# A process wherein the residual liquid of a differentiating magma is injected into rifts formed in the crystallized fraction at a late stage by deformation of unspecified ori...")
  • 11:12, 6 May 2020 Webref talk contribs created page Autoinjection (Created page with "See: autointrusion <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 11:12, 6 May 2020 Webref talk contribs created page Autohydration (Created page with "The development of new minerals in an igneous rock by the action of its own magmatic water on already existing magmatic minerals. Schieferdecker <br/>Source: Dictionary of Mi...")
  • 11:12, 6 May 2020 Webref talk contribs created page Autogenous roasting (Created page with "Roasting in which the heat generated by oxidation of the sulfides is sufficient to propagate the reaction. Newton, 2 <br/>Source: Dictionary of Mining, Mineral, and Related T...")
  • 11:11, 6 May 2020 Webref talk contribs created page Autogenous grinding (Created page with "The secondary grinding of coal or ore by tumbling in a revolving cylinder with no balls or bars taking part in the operation. Nelson <br/>Source: Dictionary of Mining, Minera...")
  • 11:11, 6 May 2020 Webref talk contribs created page Autogenous (Created page with "# In the dense-media separation process, fluid media partly composed of a mineral species selected from material being treated. Pryor, 4 # Selectively sized lumps of material...")
  • 17:27, 5 May 2020 Webref talk contribs created page Autoclastic (Created page with "Having a broken or brecciated structure, formed in the place where it is found as a result of crushing, dynamic metamorphism, or other mechanical processes; e.g., a fault brec...")
  • 17:27, 5 May 2020 Webref talk contribs created page Autochthony (Created page with "An accumulation of plant remains in the place of their growth. The term itself can be distinguished between autochthonous elements of growth (euautochthony) and autochthonous...")
  • 17:26, 5 May 2020 Webref talk contribs created page Autochthonous peat (Created page with "Peat that formed in place by the gradual accumulation of plant remains in water. It is subdivided into low-moor peat and high-moor peat. Tomkeieff <br/>Source: Dictionary of...")
  • 17:26, 5 May 2020 Webref talk contribs created page Autochthonous coal (Created page with "Coal believed to have been formed from accumulations of plant debris at the place where the plants grew. Two modes of origin are distinguished: terrestrial and aquatic. Also c...")
  • 17:26, 5 May 2020 Webref talk contribs created page Autochthonous (Created page with "Formed or produced in the place where now found. Applied to a rock the dominant constituents of which have been formed in situ; e.g., rock salt. CF: allochthonous; authigenic....")
  • 17:26, 5 May 2020 Webref talk contribs created page Autochthon (Created page with "A body of rocks that remains at its site of origin, where it is rooted to its basement. Although not moved from their original site, autochthonous rocks may be mildly to consi...")
  • 17:25, 5 May 2020 Webref talk contribs created page Authorized person (Created page with "An authorized person is either one appointed or permitted by the official designated by State mining laws to be in charge of the operation of the mine or one appointed to perf...")
  • 17:25, 5 May 2020 Webref talk contribs created page Authorized fuels (Created page with "In Great Britain, under the regulations made by the Minister (Smoke Control Areas-Authorized Fuels-Regulations, 1956), authorized fuels include coke of all kinds, anthracite,...")
  • 17:25, 5 May 2020 Webref talk contribs created page Authigenic mineral (Created page with "See: authigene <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:25, 5 May 2020 Webref talk contribs created page Authigenic (Created page with "Formed or generated in place; specif. said of rock constituents and minerals that have not been transported or that crystallized locally at the spot where they are now found,...")
  • 17:25, 5 May 2020 Webref talk contribs created page Authigenetic (Created page with "See: authigenic <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:24, 5 May 2020 Webref talk contribs created page Authigenesis (Created page with "# The process by which new minerals form in place within a rock during or after its formation, as by replacement or recrystallization, or by secondary enlargement of quartz ov...")
  • 17:24, 5 May 2020 Webref talk contribs created page Authigene (Created page with "A mineral or rock constituent that was formed in place; e.g., a mineral of an igneous rock; the cement of a sedimentary rock if deposited directly from solution; or a mineral...")
  • 17:24, 5 May 2020 Webref talk contribs created page Australian cinnabar (Created page with "A variety of chrome red. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:24, 5 May 2020 Webref talk contribs created page Australian bentonite (Created page with "Trade name for highly plastic clays from Trida, N.S.W. New South Wales <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:23, 5 May 2020 Webref talk contribs created page Austinite (Created page with "An orthorhombic mineral, CaZn(AsO4 )(OH); adelite group; forms a series with conichalcite. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:23, 5 May 2020 Webref talk contribs created page Austenitizing (Created page with "Forming austenite by heating a ferrous alloy into the transformation range (partial austenitizing) or above the transformation range (complete austenitizing). ASM, 1 <br/>Sou...")
  • 17:23, 5 May 2020 Webref talk contribs created page Austenitic stainless steel (Created page with "The so-called 18-8 grades contain from 16% to 26% chromium and 6% to 20% nickel, are not hardenable by heat treatment, and are nonmagnetic in the annealed condition. Henderson...")
  • 17:23, 5 May 2020 Webref talk contribs created page Austenite (Created page with "A solid solution of one or more elements in face-centered cubic iron. Unless otherwise designated (such as nickel austenite), the solute is generally assumed to be carbon. ASM...")
  • 17:22, 5 May 2020 Webref talk contribs created page Austempering (Created page with "The isothermal transformation of a ferrous alloy at a temperature below that of pearlite formation and above that of martensite formation. Austempering is the isothermal trans...")
  • 17:22, 5 May 2020 Webref talk contribs created page Aurous (Created page with "Of, pertaining to, or containing gold in the univalent state; e.g., aurous chloride (AuCl). <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:22, 5 May 2020 Webref talk contribs created page Aurostibite (Created page with "An isometric mineral, AuSb2 ; pyrite group. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:22, 5 May 2020 Webref talk contribs created page Aurosmirid (Created page with "A silver-white crystal solution of gold and osmium in isometric iridium. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:22, 5 May 2020 Webref talk contribs created page Aurobismuthinite (Created page with "A doubtful sulfide containing bismuth, gold, and silver; lead-gray in color. It may be a mixture of (Bi,Au,Ag2 )S , or possibly of a gold-silver alloy, and bismuthinite, Bi2 S...")
  • 17:21, 5 May 2020 Webref talk contribs created page Auriferous pyrite (Created page with "Iron sulfide, in the form of pyrite, containing gold, probably in solid solution. CTD <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:21, 5 May 2020 Webref talk contribs created page Auriferous (Created page with "Refers to a substance that contains gold, esp. gold-bearing mineral deposits. AGI <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:21, 5 May 2020 Webref talk contribs created page Auricupride (Created page with "An orthorhombic mineral, Cu3 Au . Syn: gold cupride; cuproauride. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:21, 5 May 2020 Webref talk contribs created page Aurichalcite (Created page with "An orthorhombic mineral, 4[(Zn,Cu)5 (CO3 )2 (OH)6] ; forms soft scaly greenish-blue crusts in oxidized zones of copper-zinc ore deposits; a guide to zinc ore. <br/>Source: Di...")
  • 17:20, 5 May 2020 Webref talk contribs created page Auri-argentiferous (Created page with "Applied to minerals containing both gold and silver. Standard, 2 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:20, 5 May 2020 Webref talk contribs created page Aureole (Created page with "# A zone in which contact metamorphism has taken place. <br/>Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall # A circular or cre...")
  • 17:20, 5 May 2020 Webref talk contribs created page Auralite (Created page with "# Altered iolite. Standard, 2 # Altered cordierite. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:20, 5 May 2020 Webref talk contribs created page Augite syenite (Created page with "A syenite in which augite is a prominent mafic mineral. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:19, 5 May 2020 Webref talk contribs created page Augite diorite (Created page with "A diorite in which augite is a prominent mafic mineral. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:19, 5 May 2020 Webref talk contribs created page Augite bronzite (Created page with "An obsolete term for a pyroxene between enstatite and augite in composition. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:19, 5 May 2020 Webref talk contribs created page Augite (Created page with "# A rock-forming ferromagnesian silicate mineral built around single chains of silicon-oxygen tetrahedra. <br/>Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Engle...")
  • 17:19, 5 May 2020 Webref talk contribs created page Auger mining (Created page with "A mining method often used by strip-mine operators where the overburden is too thick to be removed economically. Large-diameter, spaced holes are drilled up to 200 ft (61 m) i...")
  • 17:18, 5 May 2020 Webref talk contribs created page Auger hole (Created page with "A hole drilled with power-driven augers. Williams <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:18, 5 May 2020 Webref talk contribs created page Auger head (Created page with "See: auger mining <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:18, 5 May 2020 Webref talk contribs created page Auger boring (Created page with "The hole and/or the process of drilling a hole using auger equipment. Long <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:18, 5 May 2020 Webref talk contribs created page Auger bits (Created page with "Hard steel or tungsten-carbide-tipped cutting teeth used in an auger run on a torque bar or in an auger-drill head run on a continuous-flight auger. Long <br/>Source: Diction...")
  • 17:17, 5 May 2020 Webref talk contribs created page Auger (Created page with "# A drill for seismic shotholes or geophone holes modeled after the conventional carpenter's screw auger. Hence, any seismic shothole drilling device in which the cuttings are...")
  • 17:17, 5 May 2020 Webref talk contribs created page Augen structure (Created page with "In some gneissic and schistose metamorphic rocks, a structure consisting of minerals like feldspar, quartz, or garnet that have been squeezed into elliptical or lens-shaped fo...")
  • 17:17, 5 May 2020 Webref talk contribs created page Augen schist (Created page with "A metamorphic rock characterized by recrystallized minerals occurring as augen or lenticles parallel to and alternating with schistose streaks. See also: mylonite gneiss <br/...")
  • 17:17, 5 May 2020 Webref talk contribs created page Augen gneiss (Created page with "A general term for a gneissic rock containing augen. See also: cataclasite <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:16, 5 May 2020 Webref talk contribs created page Augen (Created page with "In foliate metamorphic rocks such as schists and gneisses, large lenticular mineral grains or mineral aggregates having the shape of an eye in cross section, in contrast to th...")
  • 17:16, 5 May 2020 Webref talk contribs created page Augelite (Created page with "A monoclinic mineral, Al2 (PO4 )(OH)3 . <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:16, 5 May 2020 Webref talk contribs created page Audiofrequency (Created page with "Any frequency corresponding to a normal audible sound wave (ranges roughly from 15,000 to 20,000 Hz). Hunt <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:16, 5 May 2020 Webref talk contribs created page Attritus (Created page with "# A composite term for dull gray to nearly black coal components of varying maceral content, unsorted and with fine granular texture, that forms the bulk of some coals or is i...")
  • 17:15, 5 May 2020 Webref talk contribs created page Attritious wear (Created page with "Wear of abrasive grains in grinding such that sharp edges gradually become rounded. A grinding wheel that has undergone such wear usually has a glazed appearance. ASM, 1 <br/...")
  • 17:15, 5 May 2020 Webref talk contribs created page Attrition mill (Created page with "# Mill that grinds abrasively, using rubbing action rather than impact shattering to disintegrate material. Pryor, 3 # A disintegrator depending chiefly on impact to reduce t...")
  • 17:14, 5 May 2020 Webref talk contribs created page Attrital coal (Created page with "A bright coal (composed of anthraxylon and of attritus in which the translucent cell-wall degradation matter or translucent humic matter predominates) in which the ratio of an...")
  • 17:13, 5 May 2020 Webref talk contribs created page Atterberg test (Created page with "A method for determining the plasticity of clay in terms of the difference between the water content when the clay is just coherent and when it begins to flow as a liquid. Dod...")
  • 17:13, 5 May 2020 Webref talk contribs created page Atterberg scale (Created page with "A proposed particle-size scale or grade scale for the classification of sediments based on a decimal system beginning with 2 mm. The limits of the subclass are obtained by tak...")
  • 17:13, 5 May 2020 Webref talk contribs created page Atterberg limits (Created page with "In a sediment, the water-content boundaries between the semiliquid and plastic states (known as the liquid limit) and between the plastic and semisolid states (known as the pl...")
  • 17:12, 5 May 2020 Webref talk contribs created page Attendance signaling system (Created page with "A signaling system that operates between the surface lamp room and the underground office, indicating the workers in attendance at the beginning of the shift. See also: self-s...")
  • 17:12, 5 May 2020 Webref talk contribs created page Attapulgite (Created page with "A light-green, magnesium-rich clay mineral, named from its occurrence at Attapulgus, GA, where it is quarried as fuller's earth. Crystallizes in the monoclinic system. Syn: pa...")
  • 17:12, 5 May 2020 Webref talk contribs created page Attack rate (Created page with "Planned rate of ore extraction from mineral deposit. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:11, 5 May 2020 Webref talk contribs created page Attached ground water (Created page with "That portion of the subsurface water adhering to the pore walls. It is assumed to be equal in quantity to the pellicular water, and it is measured by specific retention. AGI...")
  • 17:11, 5 May 2020 Webref talk contribs created page Atopite (Created page with "A yellow or brown variety of romeite containing fluorine. See also: romeite <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:11, 5 May 2020 Webref talk contribs created page Atomizer (Created page with "A spray device for producing a very fine mist for the suppression of airborne dust in mines. It is normally operated by compressed air. Syn: jet mixer; line oiler. <br/>Sourc...")
  • 17:11, 5 May 2020 Webref talk contribs created page Atomized metal powder (Created page with "Metal powder produced by the dispersion of molten metal by a rapidly moving gas, or liquid stream, or by mechanical dispersion. ASTM <br/>Source: Dictionary of Mining, Minera...")
  • 17:10, 5 May 2020 Webref talk contribs created page Atomization (Created page with "# In powder metallurgy, the dispersion of a molten metal into particles by a rapidly moving stream of gas or liquid. ASM, 1 # A patented process for producing a metallic dust...")
  • 17:09, 5 May 2020 Webref talk contribs created page Atomic volume (Created page with "# The space occupied by a quantity of an element as compared with its atomic weight. Obtained by dividing the specific gravity of the element by its atomic weight; also called...")
  • 17:09, 5 May 2020 Webref talk contribs created page Atomic susceptibility (Created page with "Change in magnetic moment of 1 g.atom on application of magnetic field of unit strength. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:09, 5 May 2020 Webref talk contribs created page Atomic size (Created page with "Radius of an atom (average distance from center to outermost electron of neutral atom). Commonly expressed in angstroms. <br/>Source: Leet, L. Don. 1982. Physical Geology, 6th...")
  • 17:09, 5 May 2020 Webref talk contribs created page Atomic scattering factor (Created page with "Describes the "efficiency" of X-ray scattering of a given atom in a given direction; equal to the amplitude of the wave scattered by an atom divided by the amplitude...")
  • 17:08, 5 May 2020 Webref talk contribs created page Atomic reactor (Created page with "A huge apparatus in which a radioactive core heats water under pressure and passes it to a heat exchanger. <br/>Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Engl...")
  • 17:08, 5 May 2020 Webref talk contribs created page Atomic plane (Created page with "# Any one of the layers into which atoms form themselves in an orderly pattern during the growth of a crystal. # In a crystal, any plane with a regular array of atomic units...")
  • 17:07, 5 May 2020 Webref talk contribs created page Atomic moisture meter (Created page with "A device to monitor the moisture in coal passing through a preparation plant, by using radiation that is sensitive to hydrogen atoms. The coal is bombarded with neutrons, some...")
  • 17:05, 5 May 2020 Webref talk contribs created page Atomic distance (Created page with "Distance between two atom centers. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:05, 5 May 2020 Webref talk contribs created page Atomic charge (Created page with "Electrical charge density due to gain or loss of one or more electrons. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:04, 5 May 2020 Webref talk contribs created page Atoll texture (Created page with "# A texture sometimes observed in a thin section of a rock, in which a ring of one mineral occurs with another mineral or minerals inside and outside the ring. # In mineral d...")
  • 17:03, 5 May 2020 Webref talk contribs created page Atoll (Created page with "A ring of low coral islands arranged around a central lagoon. <br/>Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall")
  • 17:03, 5 May 2020 Webref talk contribs created page Atmospheric condenser (Created page with "A condenser using water at atmospheric pressure. Strock, 2 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:03, 5 May 2020 Webref talk contribs created page Atmosphere-supplying respirator (Created page with "A class of respirators that supply a respirable atmosphere, independent of the workplace atmosphere. ANSI <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:02, 5 May 2020 Webref talk contribs created page Atlas spar (Created page with "Syn: satin spar <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:01, 5 May 2020 Webref talk contribs created page Atlas ore (Created page with "See: malachite <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:01, 5 May 2020 Webref talk contribs created page Atlantic suite (Created page with "One of two large groups of igneous rocks, characterized by alkalic and alkali-calcic rocks. Harker (1909) divided all Tertiary and Holocene igneous rocks of the world into two...")
  • 17:01, 5 May 2020 Webref talk contribs created page Atlantic Ridge (Created page with "Belt of mountains under Atlantic Ocean from Iceland to Antarctica and nearly midway between continents; also called mid-Atlantic Ridge. <br/>Source: Leet, L. Don. 1982. Physic...")
  • 17:01, 5 May 2020 Webref talk contribs created page Atkinson's friction coefficient (Created page with "The measure of the pressure expended per 1,000 ft/min per square foot of surface traversed in order to create motion under the conditions prevailing. It is expressed as pounds...")
  • 17:00, 5 May 2020 Webref talk contribs created page Atkinson (Created page with "The resistance of a section of roadway in which there is a pressure of 1 lb/ft2 (6.9 kPa) throughout the section, when an amount of 1,000 ft3 /s (1 kilocusec or 28.3 m3 /s) of...")
  • 17:00, 5 May 2020 Webref talk contribs created page Atelestite (Created page with "A monoclinic mineral, Bi8 (AsO4 )3 O5 (OH) 5 ; yellow. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:00, 5 May 2020 Webref talk contribs created page Ataxic (Created page with "Said of an unstratified mineral deposit. CF: eutaxic <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 17:00, 5 May 2020 Webref talk contribs created page Atacamite (Created page with "An orthorhombic mineral, 4[Cu2 Cl(OH)3 ] ; trimorphous with paratacamite and botallackite; grass green, in fine crystal aggregates, fibrous or columnar; a supergene mineral in...")
  • 17:00, 5 May 2020 Webref talk contribs created page At grade (Created page with "See: graded <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 16:59, 5 May 2020 Webref talk contribs created page Asymmetrical vein (Created page with "A vein with unlike mineral sequences on either side. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:25, 4 May 2020 Webref talk contribs created page Asymmetric unit (Created page with "The whole group of prototype atoms that, where repeated by the symmetry operations of a space group, generate a crystal structure. CF: unit cell <br/>Source: Dictionary of Mi...")
  • 15:25, 4 May 2020 Webref talk contribs created page Asymmetric fold (Created page with "# A fold in which one limb dips more steeply than the other. <br/>Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall # A fold in wh...")
  • 15:24, 4 May 2020 Webref talk contribs created page Asymmetric class (Created page with "The class of crystal forms without any symmetry. Fay <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:24, 4 May 2020 Webref talk contribs created page Astrophyllite (Created page with "# A triclinic mineral, (K,Na)3 (Fe,Mn)7 Ti2 Si8O24 (O,OH)7 ; forms a series with kupletskite. # A mineral group. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:23, 4 May 2020 Webref talk contribs created page Astrogeology (Created page with "Geology of celestial bodies other than earth. Generally restricted in meaning to geology of extraterrestrial bodies of our planetary system. <br/>Source: Leet, L. Don. 1982. P...")
  • 15:23, 4 May 2020 Webref talk contribs created page Astringent (Created page with "# A taste that puckers the mouth; descriptive of certain minerals, such as alum. Fay # Causing contraction, shrinking, or puckering. Webster 3rd # Said of a clay containing...")
  • 15:22, 4 May 2020 Webref talk contribs created page Astridite (Created page with "An ornamental stone, consisting mainly of chromojadeite. From Manokwari, New Guinea. English <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:22, 4 May 2020 Webref talk contribs created page Astrakanite (Created page with "See: blodite. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:22, 4 May 2020 Webref talk contribs created page Astochite (Created page with "A blue to gray-violet variety of amphibole; at Wermland, Sweden. Locally known as blue rhodonite. Syn: soda richterite <br/>Source: Dictionary of Mining, Mineral, and Related...")
  • 15:22, 4 May 2020 Webref talk contribs created page ASTM coal classification (Created page with "A system based on proximate analysis in which coals containing less than 31% volatile matter on the mineral-matter-free basis (Parr formula) are classified only on the basis o...")
  • 15:22, 4 May 2020 Webref talk contribs created page Asthenosphere (Created page with "# A zone within earth's mantle where plastic movements occur to permit isostatic adjustments. Begins 50 to 100 km below surface and extends perhaps to 500 km. <br/>Source: Lee...")
  • 15:21, 4 May 2020 Webref talk contribs created page Asthenolith (Created page with "A body of magma that was formed by melting in response to heat generated by radioactive disintegration. AGI <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:21, 4 May 2020 Webref talk contribs created page Asteroids (Created page with "Orbiting small bodies believed to be either fragments of a disintegrated planet or of matter that never completed planet forming process. <br/>Source: Leet, L. Don. 1982. Phys...")
  • 15:21, 4 May 2020 Webref talk contribs created page Asterism (Created page with "# Starlike rays of light observed in some minerals when viewed from certain directions, particularly if the mineral is cut en cabochon. Minerals having this feature are called...")
  • 15:20, 4 May 2020 Webref talk contribs created page Asteriated topaz (Created page with "Asteriated yellow variety of corundum, wrongly called Oriental topaz. Schaller <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:20, 4 May 2020 Webref talk contribs created page Asteriated quartz (Created page with "Quartz having whitish or colored radiations within the crystals. See: star quartz <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:20, 4 May 2020 Webref talk contribs created page Asteriated (Created page with "# Like a star, with rays diverging from a center. # Said of a mineral, crystal, or gemstone that exhibits asterism; e.g., asteriated beryl. See: star <br/>Source: Dictionary...")
  • 15:19, 4 May 2020 Webref talk contribs created page Asteria (Created page with "Any gemstone that, when cut en cabochon in the correct crystallographic direction, displays a rayed figure (a star) by either reflected or transmitted light; e.g., star sapphi...")
  • 15:19, 4 May 2020 Webref talk contribs created page Astatization (Created page with "The application of a restoring force to a moving element of a physical system in such a manner as to drive the moving element away from its rest position and to aid any deflec...")
  • 15:19, 4 May 2020 Webref talk contribs created page Astatic pendulum (Created page with "A pendulum having almost no tendency to take a definite position of equilibrium. AGI <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:19, 4 May 2020 Webref talk contribs created page Astatic gravimeter (Created page with "A gravity meter or gravimeter constructed so that a high sensitivity is achieved at certain positions of the elements of the system; i.e., equilibrium between a negative resto...")
  • 15:18, 4 May 2020 Webref talk contribs created page Astatic (Created page with "Not taking a fixed or definite position or direction; as an instrument in which a negative restoring force has been applied so as to aid any deflecting force, thereby renderin...")
  • 15:18, 4 May 2020 Webref talk contribs created page Assured mineral (Created page with "See: reserves <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:18, 4 May 2020 Webref talk contribs created page Association placer location (Created page with "A placer location made by an association of persons in one location covering 160 acres (64 ha) is not eight locations covering 20 acres (8 ha) each. It is in law a single loca...")
  • 15:17, 4 May 2020 Webref talk contribs created page Assmann psychrometer (Created page with "A wet-and-dry-bulb hygrometer in which air is drawn over the thermometer bulbs by an integral fan. BS, 8 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:17, 4 May 2020 Webref talk contribs created page Assistant mine foreman (Created page with "A person employed to assist the mine foreman in the performance of his or her duties and to serve in his or her place, in the absence of the mine foreman. <br/>Source: Dictio...")
  • 15:16, 4 May 2020 Webref talk contribs created page Assigned protection factor (Created page with "# The expected workplace level of respiratory protection that would be provided by a properly functioning respirator or a class of respirators to properly fitted and trained u...")
  • 15:15, 4 May 2020 Webref talk contribs created page Asset (Created page with "Property with cash sale value. In mining, the dominant asset is the proved ore reserve. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:15, 4 May 2020 Webref talk contribs created page Assessment work (Created page with "The annual work upon an unpatented mining claim on the public domain necessary under U.S. law for the maintenance of the possessory title thereto. This work must be done each...")
  • 15:15, 4 May 2020 Webref talk contribs created page Assessment labor (Created page with "Refers to the annual labor required of the locator of a mining claim after discovery (and not to work done before discovery). Ricketts <br/>Source: Dictionary of Mining, Mine...")
  • 15:15, 4 May 2020 Webref talk contribs created page Assessment drilling (Created page with "Drilling done to fulfill the requirement that a prescribed amount of work be done annually on an unpatented mining claim to retain title. Long <br/>Source: Dictionary of Mini...")
  • 15:13, 4 May 2020 Webref talk contribs created page Assembly rod (Created page with "An external bolt holding a machine together. Nichols, 1 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:13, 4 May 2020 Webref talk contribs created page Assembled stone (Created page with "Any stone constructed of two or more parts of gem materials, whether genuine, synthetic, imitation, or a combination thereof; e.g., a doublet or triplet. Syn: composite stone;...")
  • 15:13, 4 May 2020 Webref talk contribs created page Assayer (Created page with "Person who analyzes ores and alloys, esp. bullion, to determine the value and properties of their precious metals. DOT <br/>Source: Dictionary of Mining, Mineral, and Related...")
  • 15:13, 4 May 2020 Webref talk contribs created page Assay walls (Created page with "The outer limits to which an orebody can be profitably mined, the limiting factor being the metal content of the country rock as determined from assays. Hess <br/>Source: Dic...")
  • 15:12, 4 May 2020 Webref talk contribs created page Assay value (Created page with "# The quantity of an ore's valuable constituents, determined by multiplying its assay grade or percentage of valuable constituents by its dimensions. CF: assay inch; assay foo...")
  • 15:12, 4 May 2020 Webref talk contribs created page Assay ton (Created page with "A weight of 29.166+ g, used in assaying to represent proportionately the assay value of an ore. Because it bears the same ratio to 1 mg that a ton of 2,000 lb bears to the tro...")
  • 15:12, 4 May 2020 Webref talk contribs created page Assay split (Created page with "Agreed average value, as between buyer's and seller's assay, used as pricing basis in sale of mineral. Pryor, 3 <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:12, 4 May 2020 Webref talk contribs created page Assay plan factor (Created page with "In sampling, a term used to describe the rate that the head value bears to the mine sampling. This percentage figure is useful in reducing any extant or subsequent mine-sampli...")
  • 15:11, 4 May 2020 Webref talk contribs created page Assay plan (Created page with "Map of a mine showing the assay, stope, width, etc., of samples taken from positions marked. Used to control grade and quality of ore mined and milled. Pryor, 3 <br/>Source:...")
  • 15:11, 4 May 2020 Webref talk contribs created page Assay office (Created page with "A laboratory for examining ores, usually gold and silver ores, in order to determine their economic value. Standard, 2 <br/>Source: Dictionary of Mining, Mineral, and Related...")
  • 15:11, 4 May 2020 Webref talk contribs created page Assay inch (Created page with "In determining the assay value of an orebody, the multiplication of its assay grade by the number of inches along which the sample was taken. CF: assay foot; assay value. AGI...")
  • 15:11, 4 May 2020 Webref talk contribs created page Assay grade (Created page with "The percentage of valuable constituents in an ore, determined from assay. CF: assay value; value. AGI <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:10, 4 May 2020 Webref talk contribs created page Assay foot (Created page with "In determining the assay value of an orebody, the multiplication of its assay grade by the number of feet along which the sample was taken. CF: assay inch; assay value. AGI <...")
  • 15:10, 4 May 2020 Webref talk contribs created page Assay balance (Created page with "A very sensitive balance used in the assaying of gold, silver, etc., for weighing the beads. It usually has magnifying lenses for reading the graduations. See: balance <br/>S...")
  • 15:09, 4 May 2020 Webref talk contribs created page Aspirator (Created page with "An apparatus for moving or collecting gases, liquids, or granular substances by suction. Webster 3rd <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:09, 4 May 2020 Webref talk contribs created page Aspirating (Created page with "See: dedusting <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:09, 4 May 2020 Webref talk contribs created page Asphyxiate (Created page with "To suffocate; to choke. Mason <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:09, 4 May 2020 Webref talk contribs created page Asphaltite (Created page with "Any one of the naturally occurring black solid bitumens that are soluble in carbon disulfide and fuse above 230 degrees F (110 degrees C). Examples are uintahite, glance pitch...")
  • 15:08, 4 May 2020 Webref talk contribs created page Asphaltic rock (Created page with "Any rock naturally impregnated with asphalt. It is generally sandstone or limestone. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:08, 4 May 2020 Webref talk contribs created page Asphaltic ore (Created page with "Asphaltlike ore carrying invisible uranium values. Ballard <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:08, 4 May 2020 Webref talk contribs created page Asphaltic (Created page with "Pertaining to or containing asphalt; e.g., asphaltic limestone or asphaltic sandstone impregnated with asphalt, or asphaltic sand representing a natural mixture of asphalt wit...")
  • 15:08, 4 May 2020 Webref talk contribs created page Asphalt stone (Created page with "See: asphalt rock <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:07, 4 May 2020 Webref talk contribs created page Asphalt rock (Created page with "A porous rock, such as a sandstone or limestone, that is impregnated naturally with asphalt. Syn: asphalt stone; rock asphalt. AGI <br/>Source: Dictionary of Mining, Mineral,...")
  • 15:07, 4 May 2020 Webref talk contribs created page Asphalt (Created page with "A brown to black, solid or semisolid bituminous substance. Occurs in nature but is also obtained as residue from refining of certain hydrocarbons ("artificial asphalt&quo...")
  • 15:07, 4 May 2020 Webref talk contribs created page Asperolite (Created page with "A variety of chrysocolla, containing more than the usual percentage of water. <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:07, 4 May 2020 Webref talk contribs created page Aspect (Created page with "# The gross or overall lithologic or biologic characteristics of a stratigraphic unit as expressed at any particular point. AGI # The angle made by a target with the line joi...")
  • 15:06, 4 May 2020 Webref talk contribs created page Asparagus stone (Created page with "A yellow-green variety of apatite. Syn: asparagolite <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
  • 15:06, 4 May 2020 Webref talk contribs created page Asparagolite (Created page with "See: asparagus stone <br/>Source: Dictionary of Mining, Mineral, and Related Terms")
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