biotite

[ bahy-uh-tahyt ]

/ ˈbaɪ əˌtaɪt /

noun

a very common mineral of the mica group, occurring in black, dark-brown, or dark-green sheets and flakes: an important constituent of igneous and metamorphic rocks.

Origin of biotite

1860–65; named after J. B. Biot (1774–1862), French mineralogist and mathematician; see -ite¹

OTHER WORDS FROM biotite

bi·o·tit·ic

[bahy-uh-tit-ik], /ˌbaɪ əˈtɪt ɪk/, adjective

Words nearby biotite

biotic, biotic factor, biotic potential, biotin, biotinide, biotite, biotope, biotoxicology, biotoxin, biotransformation, biotron

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for biotite

Muscovite and biotite may both occur in the same rock; in other cases only one of them is present.
Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2|Various
The biotite is brown; the hornblende brown or greenish brown; the augite usually green.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8|Various
Biotite, if present, is brown; epidote is yellow or colourless; rutile, apatite and quartz all occur with some frequency.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6|Various
There is some sericite present, also magnetite, resulting from the decomposition of the biotite.
The Long Labrador Trail|Dillon Wallace

Biotite occurs in some of these rocks, and melanite also is present.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 5|Various

British Dictionary definitions for biotite

biotite

/ (ˈbaɪəˌtaɪt) /

noun

a black or dark green mineral of the mica group, found in igneous and metamorphic rocks. Composition: hydrous magnesium iron potassium aluminium silicate. Formula: K(Mg,Fe) 3 (Al,Fe)Si 3 O 10 (OH) 2 . Crystal structure: monoclinic

Derived forms of biotite

biotitic (ˌbaɪəˈtɪtɪk), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for biotite

biotite

[ bī′ə-tīt′ ]

A dark-brown or dark-green to black mica. Biotite is monoclinic and is found in igneous, metamorphic, and sedimentary rocks. Chemical formula: K(Mg,Fe)3(Al,Fe)Si3O10(OH)2.

单词	biotite
释义	biotite [ bahy-uh-tahyt ] / ˈbaɪ əˌtaɪt / noun a very common mineral of the mica group, occurring in black, dark-brown, or dark-green sheets and flakes: an important constituent of igneous and metamorphic rocks. Origin of biotite 1860–65; named after J. B. Biot (1774–1862), French mineralogist and mathematician; see -ite¹ OTHER WORDS FROM biotite bi·o·tit·ic [bahy-uh-tit-ik], /ˌbaɪ əˈtɪt ɪk/, adjective Words nearby biotite biotic, biotic factor, biotic potential, biotin, biotinide, biotite, biotope, biotoxicology, biotoxin, biotransformation, biotron Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for biotite Muscovite and biotite may both occur in the same rock; in other cases only one of them is present. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2\|Various The biotite is brown; the hornblende brown or greenish brown; the augite usually green. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8\|Various Biotite, if present, is brown; epidote is yellow or colourless; rutile, apatite and quartz all occur with some frequency. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6\|Various There is some sericite present, also magnetite, resulting from the decomposition of the biotite. The Long Labrador Trail\|Dillon Wallace Biotite occurs in some of these rocks, and melanite also is present. Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 5\|Various British Dictionary definitions for biotite biotite / (ˈbaɪəˌtaɪt) / noun a black or dark green mineral of the mica group, found in igneous and metamorphic rocks. Composition: hydrous magnesium iron potassium aluminium silicate. Formula: K(Mg,Fe) 3 (Al,Fe)Si 3 O 10 (OH) 2 . Crystal structure: monoclinic Derived forms of biotite biotitic (ˌbaɪəˈtɪtɪk), adjective Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for biotite biotite [ bī′ə-tīt′ ] A dark-brown or dark-green to black mica. Biotite is monoclinic and is found in igneous, metamorphic, and sedimentary rocks. Chemical formula: K(Mg,Fe)3(Al,Fe)Si3O10(OH)2. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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