Biotite
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underthescopeminerals:Biotite Locality:In den Dellen quarries, Niedermendig, Mendig, Laach lake volc
underthescopeminerals:Biotite Locality:In den Dellen quarries, Niedermendig, Mendig, Laach lake volc
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.
dream-small-do-big:Grades of toast according to geologists.“NO, I want my bagel toasted like b
dream-small-do-big:Grades of toast according to geologists.“NO, I want my bagel toasted like b
Composition includes: biotite, muscovite, chlorite, feldspars, oxides, and quartz. Feldspar poikilob
Composition includes: biotite, muscovite, chlorite, feldspars, oxides, and quartz. Feldspar poikilob
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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