anatase

American  

[an-uh-teys, -teyz] / ˈæn əˌteɪs, -ˌteɪz /

noun

Mineralogy.

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

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anatase British  

/ ˈænəˌteɪz /

noun

1. Also called: octahedrite.  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

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Etymology

Origin of anatase

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

Example Sentences

See Examples For:

anatase

The diamonds are found in the sands and gravels of river-beds, associated with alluvial gold, specular iron ore, rutile, anatase, topaz, and tourmaline.

From The Romance of Industry and Invention by Robert Cochrane

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

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various

Examples of substances which crystallize in this class are cassiterite, rutile, anatase, zircon, thorite, vesuvianite, apophyllite, phosgenite, also boron, tin, mercuric iodide.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

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

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

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

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various