Biotite Gneiss Microscope
Biotite Gneiss. Sometimes referred to as black mica, biotite is a common silicate mineral. Similar to other micas, it features a sheetlike structure and exhibits perfect basal cleavage. Although a frequent component of metamorphic rocks, such as gneisses, as well as those of igneous origin, biotite is rarely found in sedimentary samples because ...
What is biotite mica used to make
Biotite is a form of Mica (dark/black mica) made from Mafic eruptions. It is often found embedded in Granite. Boitite can also be found in some varieties of Schists, and in some other metamorphic ...
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