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Graeserite

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ALP155377

Graeserite

Type Locality

Description Tabs

Description
Locality: 
Gorb, Lärchultini, Binn, Goms, Valais, Switzerland
Size Range: 
Micromount (under 1cm)
Size: 
0.5 × 0.5 × 0.5 cm
Description

Black and rusty-red needles crystals of graeserite from the type locality

Mineral Data
What's on the rock

Graeserite

Formula: 
(Fe3+ ,Ti)4Ti3AsO13(OH)
Strunz: 
4.JB.55
Crystal System: 
Monoclinic
Hardness: 
5.5
Colour: 
Black
Streak: 
Black
Type Locality: 
Gorb, Lercheltini area (Lärcheltini), Binn Valley, Wallis (Valais), Switzerland

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