biotite
noun
bi·o·tite
ˈbī-ə-ˌtīt 
: a generally black or dark green form of mica that is a constituent of crystalline rocks and consists of a silicate of iron, magnesium, potassium, and aluminum
Examples of biotite in a Sentence
Recent Examples on the Web
Alteration associated with porphyry intrusions is often magnetic (from magnetite) and potassic (from sericite/biotite/K-feldspar).
—
Sacramento Bee, 2 July 2024
But what intrigued the researchers was that biotite and feldspar don’t occur together.
—Roger Lewin, Discover Magazine, 11 Nov. 2019
Was the La Vache recipe--call it recipe B, for biotite and feldspar--also used at Niaux?
—Roger Lewin, Discover Magazine, 11 Nov. 2019
Sacramento Bee, 2 July 2024
But what intrigued the researchers was that biotite and feldspar don’t occur together.
—Roger Lewin, Discover Magazine, 11 Nov. 2019
Was the La Vache recipe--call it recipe B, for biotite and feldspar--also used at Niaux?
—Roger Lewin, Discover Magazine, 11 Nov. 2019
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'biotite.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Biotite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biotite. Accessed 4 Nov. 2024.
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biotite
noun
bi·o·tite
ˈbī-ə-ˌtīt
: a generally black or dark green mica containing iron, magnesium, potassium, and aluminum
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