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Anatase Brookite & Rutile

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STY137132

Anatase Brookite & Rutile

Description Tabs

Description
Locality: 
Grauleiten Peak, Ankogel, Hohe Tauern, Carinthia, Austria
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 3.4 × 1.5 cm
Description

Many clear, orange anatase crystals on a chlorite-calcite-matrix. Tabular brookite and needle-shaped rutile crystals are also present on the specimen. A nice piece with all three TiO2 modifications.

Mineral Data
What's on the rock

Anatase

Formula: 
TiO2
Strunz: 
4.DD.05
Hardness: 
5.5 - 6.0
Type Locality: 
St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France...

Brookite

Formula: 
TiO2
Strunz: 
4.DD.10
Crystal System: 
Orthorhombic
Hardness: 
5.5 - 6.0
Type Locality: 
Twll Maen Grisial, Fron Olau, Prenteg, Gwynedd (Caernarvonshire), Wales, UK

Rutile

Formula: 
TiO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal - Ditetragonal Dipyramidal
Hardness: 
6.0 - 6.5
Type Locality: 
Rutile locality, Horcajuelo de la Sierra, Madrid, Spain
Styriamin

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