Biotite Mica
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Mica bookOne family of minerals called phyllosilicates tends to form grains that are extremely flat.
Mica bookOne family of minerals called phyllosilicates tends to form grains that are extremely flat.
Alkali Feldspar crystals are large in this thin section. The alkali feldspar have subhedral crystals
Alkali Feldspar crystals are large in this thin section. The alkali feldspar have subhedral crystals
Golden columns of #biotite in #quartz. Field of view = 3.05mmThis type of mica tends to be very gemm
Golden columns of #biotite in #quartz. Field of view = 3.05mmThis type of mica tends to be very gemm
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