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anatase

[ an-uh-teys, -teyz ]

noun

, Mineralogy.
  1. a naturally occurring crystalline form of titanium dioxide, TiO 2 .


anatase

/ ˈænəˌteɪz /

noun

  1. a rare blue or black mineral that consists of titanium oxide in tetragonal crystalline form and occurs in veins in igneous rocks. Formula: TiO 2 Also calledoctahedrite


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Word History and Origins

Origin of anatase1

1835–45; < French < Greek anátasis, equivalent to ana- ana- + ta- (variant stem of teínein to stretch) + -sis -sis
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Word History and Origins

Origin of anatase1

C19: from French, from Greek anatasis an extending (referring to the length of the crystals), from anateinein to stretch out
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Example Sentences

There is no distinct cleavage (rutile and anatase have cleavages); hardness 5-6; sp.

Minute crystals of brookite have been detected with anatase and rutile in the iron-ore of Cleveland in Yorkshire.

Brookite occurs only as crystals, never in compact masses, and is usually associated with either anatase or rutile.

Titanic acid occurs in nature crystallized in anatase, arkansite, brookite, and rutile.

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