Auxiliary mineral

Jump to navigationJump to search

In Johannsen's classification of igneous rocks, any light-colored, relatively rare mineral, or mineral occurring in small quantities, such as apatite, muscovite, corundum, fluorite, and topaz. AGI
Source: Dictionary of Mining, Mineral, and Related Terms

Sponsor: FREE Bundle of 5 PR eBooks, including checklists and tips to succeed with press releases - Download Now!