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Kämmererite & Artinite On Chromite

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CLB503036

Kämmererite & Artinite On Chromite

Classic Locality

Description Tabs

Description
Locality: 
Kop Krom Mine, Kop Daglari, Erzurum Province, Turkey
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 4.8 × 3.6 cm
Description

The first time I see this paragenesis: colorless, acicular artinite crystals (visual ID) on kämmererite (= chromian clinochlore). Fantastic, translucent kämmererite crystals on three sides of the specimen. Artinie concentrates on one side. Very rare combination.

Mineral Data
What's on the rock

Kämmererite

Variety Of: 

Clinochlore

Formula: 
(Mg,Fe2+)5Al(AlSi3O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
2.0 - 2.5
Hardness: 
0.0
Streak: 
white

Artinite

Formula: 
Mg2(CO3)(OH)2·3H2O
Strunz: 
5.DA.10
Crystal System: 
Monoclinic
Hardness: 
2.5
Streak: 
White
Type Locality: 
Dossi di Franscia (Franscia Mine; Franscia Mines; Franscia Quarries), Campo Franscia (Franscia), Lanzada, Lanterna Valley, Malenco Valley, Valtellina, Sondrio Province, Lombardy, Italy

Chromite

Formula: 
Fe2+Cr3+2O4
Strunz: 
4.BB.05
Hardness: 
5.5
Colour: 
Black
Streak: 
Brown
Type Locality: 
Bastide de la Carrade, Gassin, Var, Provence-Alpes-Côte d'Azur, France...

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