biotite

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bi·o·tite

 (bī′ə-tīt′)
n.
A dark-brown or dark-green to black mica, K(Mg,Fe)3(Al,Fe)Si3O10(OH)2, found in igneous and metamorphic rocks.

[After Jean Baptiste Biot (1774-1862), French physicist.]

bi′o·tit′ic (-tĭt′ĭk) adj.

biotite

(ˈbaɪəˌtaɪt)
n
(Minerals) 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)Si3O10(OH)2. Crystal structure: monoclinic
biotitic adj

bi•o•tite

(ˈbaɪ əˌtaɪt)

n.
a mica occurring in black, dark brown, or dark green sheets and flakes: an important constituent of igneous and metamorphic rocks.
[1860–65; after J. B. Biot (1774–1862), French mineralogist; see -ite 1]
bi`o•tit′ic (-ˈtɪt ɪk) adj.

bi·o·tite

(bī′ə-tīt′)
A dark-brown to black mica found in igneous and metamorphic rocks.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.biotite - dark brown to black mica found in igneous and metamorphic rock
lepidomelane - a mica that is a biotite containing iron
isinglass, mica - any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity
References in periodicals archive ?
The Hilux Conquest comes in three colors: Freedom White, Attitude Black Mica, and Nebula Blue Metallic.
They come in super white, attitude black mica and nebula blue metallic.
The icing on the cake is a choice of Dynamic Blue Mica, Snowflake White Pearlescent or Jet Black Mica paint, which would normally cost about PS300 alone.
The car is offered with the choice of free-of-charge snowflake white pearlescent or black mica paint.
On sale from September 1 the car is offered with the choice of free-of-charge Snowflake White Pearlescent or Black Mica paint.
With free-of-charge Snowflake White Pearlescent or Black Mica paint - buyers can enhance the styling further by adding optional Dark Gunmetal 15-inch alloy wheels, helping to set apart the special model.
Unique inside and out, the newcomer is offered with a choice of Snowflake White Pearlescent or Black Mica paint with Soul Red accents on the wing mirror covers, rear spoiler and rear underskirt.
It is available with a choice of Snowflake White Pearlescent and Black Mica paint.
The one we sampled was a Black Edition which, as the name implies, comes with a black mica paint finish with a red roof and red highlights around the honeycomb grille, on the front splitter and the mirror caps.
The 2016 Land Cruiser is available in 10 exterior colors: pearl white, super white, silver metallic, grey metallic, dark red mica metallic, black, beige mica metallic and attitude black mica, plus two newly developed colors - copper brown mica and dark blue mica.
So, a choice of Jet Black mica or Crystal White pearlescent exterior colours joins items like diffuser-style rear bumper trim, a black rear spoiler and power-operated heated folding door mirrors, rear privacy glass, 15-inch alloys, unique badging and the no-cost option of colour-coded bonnet and roof stripes.