Biotite Crystals on Matrix Biotite aslo known as Black Mica, is a common phyllosilicate mineral within the mica group. Biotite is form in sheets of iron, magnesium, aluminum, silicon, oxygen, and hydrogen weakly bond together by potassium ions. The chemical formula is K(Mg,Fe)3AlSi3O10(F,OH)2. Biotite can be found in many igneous and metamorphic rocks; it can be found in New Englad, Virginia and North Carolina, USA, and in Bancroft and Sudbury, Ontario. But the single largest Biotite crystal was found in Iveland, Norway, measuring 7 m2. Approximate Size: (2 ½” by 2 ½“)
Biotite Crystals on Matrix
Stone: Biotite
Origin:
Sold by:
Attributes:
Biotite Crystals on Matrix Biotite aslo known as Black Mica, is a common phyllosilicate mineral within the mica group. Biotite is form in sheets of iron, magnesium, aluminum, silicon, oxygen, and hydrogen weakly bond together by potassium ions. The chemical formula is K(Mg,Fe)3AlSi3O10(F,OH)2. Biotite can be found in many igneous and metamorphic rocks; it can be found in New Englad, Virginia and North Carolina, USA, and in Bancroft and Sudbury, Ontario. But the single largest Biotite crystal was found in Iveland, Norway, measuring 7 m2. Approximate Size: (2 ½” by 2 ½“)
