Difference between revisions of "Bole"

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(Created page with "Any of several varieties of compact earthy clay (impure halloysite), usually red, yellow, or brown because of the presence of iron oxide, and consisting essentially of hydro...")
 
 
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Source: Dictionary of Mining, Mineral, and Related Terms
 
Source: Dictionary of Mining, Mineral, and Related Terms
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[[Category: Geology]]

Latest revision as of 14:22, 6 July 2021

Any of several varieties of compact earthy clay (impure halloysite), usually red, yellow, or brown because of the presence of iron oxide, and consisting essentially of hydrous silicates of aluminum or less often of magnesium. It is a waxy decomposition product of basaltic rocks, having the variable composition of lateritic clays. Syn: bolar

Source: Dictionary of Mining, Mineral, and Related Terms


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