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Iowaite & Gypsum

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ESM611343

Iowaite & Gypsum

Rare Mineral

Description Tabs

Description
Locality: 
Talnakh, Noril'sk, Putoran Plateau, Taimyr Peninsula, Krasnoyarsk Krai, Russian Federation
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
0.4 × 2.2 × 1.1 cm
Description

Brown iowaite crystals on and in clear gypsum

Mineral Data
What's on the rock

Iowaite

Formula: 
Mg6Fe3+2(OH)16Cl2·4H2O
Strunz: 
4.FL.05
Hardness: 
1.5
Type Locality: 
Unnamed drill core, Sioux Co., Iowa, USA

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.