Biotite 6mm Round Orange - 15-16 Inch African Blue Opal and Magtalisai

and Magtalisai

The name is derived from the Charo River in eastern Siberia

Mined in Hubei China

brown and orange

who first catalogued the stone in 1902

Biotite 6mm Round Orange - 15-16 Inch African Blue Opal and MagtalisaiBiotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks. These include annite, phlogopite, siderophyllite, fluorophlogopite, fluorannite, eastonite, and many others. The name "biotite" is used because these minerals generally cannot be distinguished without optical, chemical, or x ray analysis. Biotite was named in honor of the French physicist Jean Baptiste Biot, who performed early