Biotite Mineral | Uses and Properties - Geology.com
Biotite is a rock-forming mineral found in a wide range of crystalline igneous rocks such as granite, diorite, gabbro, peridotite, and pegmatite. It also forms under metamorphic conditions …
Biotite - Wikipedia
Biotite is a common group of phyllosilicate minerals within the mica group, with the approximate chemical formula K (Mg,Fe)3AlSi3O10(F,OH)2. It is primarily a solid-solution series between …
Biotite Mica : Properties, Formation, Ocurrence and Uses
Sep 2, 2023 · Biotite is the most common mica mineral and also known as black mica, a silicate mineral in the common mica group. Approximate chemical formula K (Mg, Fe). It can be found …
Biotite Mineral Data
Biotite is now a group name for phlogopite, siderophyllite and eastonite. Common world wide. Link to MinDat.org Location Data. Named in 1847 after the French physicist, Jean Baptiste Biot …
Biotite | Common Minerals
Biotite and phlogopite are the darkest members of the mica mineral group. Typically brown to black in color, biotite occasionally occurs in a dark green variety. Phlogopite is lighter in color, …
Biotite - Clark Science Center
The color of biotite in hand sample is brown to black (sometimes greenish). Its streak is white or gray, and it has a vitreous luster. The physical properties of biotite are affected by the amount …
Biotite - Details and Facts - allmineralsrock
Streak: Biotite streaks white. Hardness: Biotite's hardness ranges from 2.5 to 3 on the Moh's scale. Specific Gravity: Biotite's specific gravity ranges from 2.8 to 3.4.
Biotite - Minerals Education Coalition
Biotite is black magnesium/iron-based mica of low commercial value. It appears in the form of thin sheets which generally range from 0.003 mm to 0.1 mm in thickness. Uses. The high iron …
Biotite mica: The mineral Biotite information and pictures
Biotite is a common rock-forming mineral, and is especially noted in metamorphic rocks such as schist and gneiss. It is also found in igneous rock such as granites and rhyolites. Biotite is also …
Biotite - Geology is the Way
Biotite is less common in volcanic rocks, as it tends to destabilize and being replaced by other minerals at low pressures, but it may be found as resorbed relics. In metamorphic rocks, …