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Mineralpedia Details for Anatase

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Anatase

Anatase

Named in reference to the length of the pyramidal faces of the mineral as being longer in relation to the base in comparison to other tetragonal minerals, after the Greek word anatasis, meaning “uplift,” or in some translations, “extension.” Anatase is relatively common and widespread and can be found in localities in Switzerland, France, Norway, Russia, England, Wales, Brazil, the United States, and Canada, among several others. Anatase is usually a secondary mineral that has been derived from other titanium minerals, but can also be found in Alpine veins derived from hydrothermal solutions, in igneous an metamorphic rocks, pegmatites, carbonatites, and commonly as a detrital mineral.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/anatase.pdf

Formula
TiO2 
Crystal System
Tetragonal 
Crystal Habit
Pyramidal, Tabular 
Cleavage
Perfect, Distinct, None 
Luster
Adamantine - Resinous 
Color
black, reddish brown, yellowish brown, dark blue, gray 
Streak
pale yellowish white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Conchoidal 
Hardness
5.5-6 
WebMineral
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Mindat
View Anatase 

Anatase from Kharan dist., Baluchistan, Pakistan

Anatase
            from Kharan dist., Baluchistan, Pakistan

Well formed, striated, translucent brown Anatase crystal 5mm on Quartz matrix.

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Anatase from Mid State quarry, Magnet Cove, Hot Springs Co., Arkansas, United States

Anatase
            from Mid State quarry, Magnet Cove, Hot Springs Co., Arkansas, United States

Sharp black, lustrous crystals to 1.5mm.

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Anatase from Maderanertal, Uri, Switzerland

Anatase
            from Maderanertal, Uri, Switzerland

BLUE Anatase crystal cluster to 4mm. Excellent, euhedral crystals with good blue transparency.

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Anatase from Hardangervidda Matskorhae, Hordaland Fylke, Norway

Anatase
            from Hardangervidda Matskorhae, Hordaland Fylke, Norway

3mm Crystal on Quartz

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Anatase from Minas Novas, near Malacacheta, Minas Gerais, Brazil

Anatase
            from Minas Novas, near Malacacheta, Minas Gerais, Brazil

A gemmy, odd-shaped, thick tabular, reddish brown, lustrous Anatase single crystal. 

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Anatase from Dodo mine, Saranpaul, Prepolar Ural, Russia

Anatase
            from Dodo mine, Saranpaul, Prepolar Ural, Russia

Several blue, very nice Anatase crystals on this specimen of mica schist and Quartz. The largest crystal is 5mm but most are 1 to 2mm. 

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Anatase from Hardangervidda, Norway

Anatase
            from Hardangervidda, Norway

Sharply pointed cluster of deep blue lustrous Anatase crystals. 

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