biotite ore white background |
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navigate by keyword : aluminous amethyst and annite background between biotite common crystal crystals dark endmembers gem gemstone geological geologist geology group include ironendmember isolated macro magnesiumendmember material metal mica mine mineral minerals more natural nature nugget object ore phlogopite phyllosilicate precious primarily raw refers rock sample science series shiny siderophyllite solidsolution specimen stone texture white within |
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Biotite is a common phyllosilicate mineral within the mica group, it refers to the dark mica series, primarily a solid-solution series between the iron-endmember annite, and the magnesium-endmember phlogopite; more aluminous end-members include siderophyllite |
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