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Anatase & Brookite

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MCH508099

Anatase & Brookite

Description Tabs

Description
Locality: 
Sjoa, Sel, Innlandet, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 5 × 3.1 cm
Description

A number of good visible, steel blue anatase crystals (up to approx. 0.2 cm in size) with blue internal reflexes as well as some tiny tabular, golden brown coloured brookite crystals are set on a number of clear quartz crystals as well as on some adularia. Collected in 1982 at this uncommon locality.

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

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