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Brookite Var Arkansite

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ESM891356

Brookite Var Arkansite

Description Tabs

Description
Locality: 
Kedrovyi Massif, Murunskii Massif, Aldan Shield, Sakha Republic, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 2 × 1 cm
Description

Black arkansite crystals on a quartz matrix

Mineral Data
What's on the rock

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

Arkansite

Variety Of: 

Brookite

Formula: 
TiO2
Strunz: 
4.DD.10
Hardness: 
5.5 - 6.0
Hardness: 
0.0