Biotite - Wikipedia
WEBBiotite 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 the iron - endmember annite, and the magnesium -endmember phlogopite; more aluminous end-members include siderophyllite and eastonite.
Biotite Mineral | Uses and Properties - Geology.com
WEBBiotite 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 when argillaceous rocks are exposed to …
Biotite Mica : Properties, Formation, Ocurrence and Uses
WEBSep 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 in massive crystal layers weighing several hundred pounds.
Biotite mica: The mineral Biotite information and pictures
WEBBiotite is a common rock-forming mineral, and is especially noted in metamorphic rock s such as schist and gneiss. It is also found in igneous rock such as granite s and rhyolites. Biotite is also the primary mica in rare earth pegmatite …
Biotite Mineral Geology and Uses - ThoughtCo
WEBJan 16, 2020 · It is an abundant mineral, calculated to account for about 7 percent of the continental crust. It is found in the lava from Mount Vesuvius, the Monzoni intrusive complex of the Dolomites, and in granite, pegmatite, and schist. Biotite is so common that it's considered a rock-forming mineral.
Biotite | Mica, Silicate, Rock-Forming | Britannica
WEBbiotite, a silicate mineral in the common mica group. It is abundant in metamorphic rocks (both regional and contact), in pegmatites, and also in granites and other intrusive igneous rocks. For chemical formula and detailed physical properties, see mica (table).
Biotite - Rock-Forming Minerals - Sandatlas
WEBBiotite is a very common and widespread mineral group. The minerals of the group occur often in metamorphic and igneous rocks. It is much less common in sediments and sedimentary rocks because it yields to clay minerals in the weathering environment. Biotite is one of the two most common members of the mica group. The other one is muscovite.
Biotite Mineral Data
WEBName Origin: Named in 1847 after the French physicist, Jean Baptiste Biot (1774 - 1862), who studied the optical properties of the micas. Name Pronunciation: Biotite. Synonym: Iron Mica. Lepidomelane (Fe) Manganophyllite …
Biotite | Common Minerals
WEBA common, widespread, rock-forming mineral, biotite is a significant mineral in granites, diorites, and igneous pegmatites. In pegmatites, biotite crystals can be very large. It also occurs in schists, gneisses, and hornfels that resulted …
Biotite | Encyclopedia.com
WEBMay 8, 2018 · Earth and the Environment. Minerals, Mining, and Metallurgy. Mineralogy and Crystallography. biotite. views 2,471,073 updated May 08 2018.
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