biotite mineral properties

Biotite Mineral | Uses and Properties


What is Biotite? Biotite 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.These micas vary in chemical composition but are all sheet silicate minerals with very similar physical properties.

Muscovite mica: The mineral Muscovite information and pictures


Muscovite is an extremely common mineral, nevertheless there are some exceptional localities that need to be mentioned. Outstanding Muscovite crystals, some bright yellow and others with perfect star formations, come from the famous pegmatite localites in the Doce and Jequitinhonha Valleys in Minas Gerais Brazil. Specific localities include Divino das Laranjeiras ("stars"),Galileia, Governador ...

BIOTITE - Raven Crystals


VIBRATION: Number 4 ZODIAC: Scorprio ATTRIBUTES: In addition to the properties of Mica, Biotite mineral allows one to look rationally at one's environment and any potential issues involved. Biotite creates a vision "seeing" farther than the issue. It allows one to discard insignificant, irrelevant details and provides a clear picture of each issue.

Biotite - NOVA Mineralogy


Physical Properties Chemical formula K(Mg,Fe)3(AlSi3O10)(OH)2 Class Phyllosilicate Sheets of linked tetrahedra Crystal system Monoclinic, pseudohexagonal Habit Pseudohexagonal Foliated masses Irregular grains or flakes Books of foliated, pseudohexagonal crystals Color Black Brown-black Greenish black Hardness 2.5 to 3 Specific gravity 2.9 to 3.1 Cleavage Perfect basal {001} Fracture Ragged ...

Biotite Mica - Mineral and Healing Properties


Biotite was named by J.F.L. Hausmann in 1847 in honour of the French physicist Jean-Baptiste Biot, who, in 1816, researched the optical properties of mica, discovering many unique properties. Interesting Facts. Biotite mica is sometimes called "iron mica" because it is more iron-rich than phlogopite.

Biotite mica: The mineral Biotite information and pictures


Biotite is a very common form of mica. It is named in honor Jean Baptiste Biot (1774 - 1862), a French physicist, mathematician, and astronomer who researched the mica minerals for their optical properties. Because of Biotite's abundance, its presence is usually lacking in collections except for it being an accessory mineral to other minerals ...

ALEX STREKEISEN-Biotite-


Biotite - K(Mg,Fe 2+) 3 [AlSi 3 O 10 (OH,F) 2 Biotite is a common phyllosilicate mineral within the mica group. Biotite is a solid solution between the end members phlogopite KMg 3 AlSi 3 O 10 (OH) 2 and annite KFe 3 AlSi 3 O 10 (OH) 2, although pure annite does not occur in nature.In addition, small amounts of Na, Rb, Cs, and Ba may substitute for K, and like in other minerals, F can ...

Biotite – A Common Rock Forming Mineral


Biotite is a member of the mica branch of the silicate mineral group.It is common as a rock-forming mineral and is found associated with muscovite, feldspar, and quartz. It has a widespread occurance and is present in all three rock types igneous, metamorphic, and sedimentary.

Facts About Biotite: Meanings, Properties, and Benefits ...


Apr 17, 2019· Biotite is a common rock forming mineral, which is present in no less than some fraction in most igneous and both contact and regional metamorphic rocks. This common brown or black color of biotite is actually characteristic even though it's hard to determine brown biotite from the dark brown phlogopite. In the actual fact, these two are end members in a sequence, which is reliant on the ...

Biotite K(Mg Fe2+ (Al Fe3+)Si O (OH F) 3 10 2


Biotite K(Mg;Fe2+)3(Al;Fe3+)Si3O10(OH;F)2 °c 2001 Mineral Data Publishing, version 1.2 Crystal Data: Monoclinic. Point Group: 2=m: Uncommon in good crystals, tabular or short prismatic, with pseudohexagonal outline, to 3 m.

biotite | Minerals | Crystalline Solids


Biotite. c 2001 . K(Mg; Fe2+ )3 (Al; Fe3+ )Si3 O10 (OH; F)2 Mineral Data Publishing, version 1.2. Crystal Data: Monoclinic. Point Group: 2=m: Uncommon in good crystals, tabular or short prismatic, with pseudohexagonal outline, to 3 m.

Optical Properties of Minerals


Example of Interference Colors: Biotite, Quartz and Graphite in a Mica Schist Here we see mostly brown biotite flakes. The biotite show various shades of brown and tan in PP light (it is pleochroic).Biotite has moderately high birefringence. In the XP view, the biotite interference colors range up to 2nd order red (with just a hint of 2nd order blue).

Biotite: Meanings, Properties and Powers - A Complete Guide


Jul 06, 2018· Biotite Properties Biotite is a mineral that's named after French physicist Jean Baptist who studied and researched about it for its optical properties. It is also known as Black Mica. It usually occurs in rust, golden brown, reddish

mica | Structure, Properties, Occurrence, & Facts | Britannica


The names of the rock-forming micas constitute a good example of the diverse bases used in naming minerals: Biotite was named for a person—Jean-Baptiste Biot, a 19th-century French physicist who studied the optical properties of micas; muscovite was named, albeit indirectly, for a place—it was originally called "Muscovy glass" because ...

Biotite: Mineral information, data and localities.


A barium- and titanium-bearing biotite mica. Chrom-Biotit: A Cr-bearing variety of biotite. Chromium-bearing Biotite: A Cr-bearing variety of biotite. Eastonite (of Winchell) A name for the Biotite end-member. Heterophyllite: Designation for a uniaxial biotite from Mangualde, Portugal. Manganophyllite: A Mn-rich variety of Biotite. Mg(T) Mica

biotite mineral properties - Wembley Primary School


Biotite Mica Mineral Physical and Optical Properties . Biotite usually occurs in brown to black dark green variety It is a name used for a range of black mica minerals with different chemical compositions but with very similar physical properties These minerals are usually indistinguishable from each other without laboratory analysis There is a small list of biotite minerals that were down

Properties of Minerals | Earth Science | Visionlearning


Identifying minerals by physical properties. The most common minerals in Earth's crust can often be identified in the field using basic physical properties such as color, shape, and hardness. The context of a mineral is important, too – some minerals can form under the same conditions, so you are likely to find them in the same rock, while others form under very different conditions and will ...

Hornblende - Mineral and Healing Properties


Hornblende is a powerful root chakra stone. Hornblende, also known as amphibolite, can help when your argumentative side takes over with friends or loved ones. It helps individuals to accept compromise so that all parties can attain resolution..

Phlogopite Mica | Physical - Optical Properties, Uses ...


Phlogopite is a member of mica group family of phyllosilicates mineral. Color is a yellow, greenish, or reddish-brown. It is the magnesium endmember of the biotite stable answer series, with the chemical formulation KMg3AlSi3O10 (F, OH) 2.

Hornblende Mineral | Uses and Properties


This piece of biotite hornblende granite is an example. Image by NASA. Hornblende Minerals. As noted above, hornblende is a name used for a number of dark-colored amphibole minerals that are compositional variants with similar physical properties. These minerals cannot be distinguished from one another without laboratory analysis. A small list ...

Biotite - Clark Science Center


The diversity in biotite's composition makes it hard to use optical properties as an indicator for composition. Ferriannite may have alpha and gamma indices as high as 1.677 and 1.721 respectively. Max Birefringence: 0.03-0.07: Strong mineral color will …

ALEX STREKEISEN-Biotite-


Biotite - K(Mg,Fe 2+) 3 [AlSi 3 O 10 (OH,F) 2 Biotite is a common phyllosilicate mineral within the mica group, with the approximate chemical formula K(Mg,Fe) 3 AlSi 3 O 10 (F,OH) 2.Biotite is a solid solution between the end members Phlogopite KMg 3 AlSi 3 O 10 (OH) 2 and Annite KFe 3 AlSi 3 O 10 (OH) 2, although pure Annite does not occur in nature.In addition, small amounts of Na, Rb, Cs ...

Biotite | mineral | Britannica


Biotite, 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 is regarded as a mixture

Biotite Water Treatment and Filtration - Power Organics


Biotite deposits are found in many places on the surface of the Earth. When biotite, produced by volcanic eruptions, comes in contact with seawater, it produces acids which structure and purify water. Biotite Liquid Crystal Minerals mimics this natural process to create a liquid that has the same remarkable properties.

Biotite mica mineral specimens – Best Crystals


Biotite is a very common form of mica. It is named in honor Jean Baptiste Biot (1774 - 1862), a French physicist, mathematician, and astronomer who researched the mica minerals for their optical properties. Because of Biotite's abundance, its presence is usually lacking in collections except for it being an accessory mineral to other minerals.

(PDF) Chemical composition of biotite as a guide to ...


Biotite is an important hydrated ferromagnesian silicate mineral in igneous rocks and porphyry deposits. The determination of chemical compositions of biotite plays an important role in both ...

Biotite - Wikipedia


Muscovite

Biotite Granite - USGS Mineral Resources On-Line Spatial Data


Geologic unit mapped in ia: Gray to white, medium-grained, massive to layered granite and granite gneiss range in composition from granite to quartz diorite. Quartz diorite dikes and sills are locally abundant. Mineralogy: quartz + potassium feldspar + plagioclase + biotite + epidote + muscovite ± clinopyroxene + hornblende. This unit intrudes biotite gneiss unit (Cbg).