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Krausite Metavoltine & Coquimbite

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MEX141557

Krausite Metavoltine & Coquimbite

Rare Mineral

Description Tabs

Description
Locality: 
Javier Mine, Huac-huas, Lucanas Province, Ayacucho Department, Peru
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 2.8 × 2.2 cm
Description

Rich specimen with barite-like krausite crystal groups with yellow metavoltine crystals on big coquimbite crystal. Diameter of coquimbite are 1.5 cm.

Mineral Data
What's on the rock

Krausite

Formula: 
KFe(SO4)2·H2O
Strunz: 
7.CC.05
Crystal System: 
Monoclinic
Hardness: 
2.5
Streak: 
White
Type Locality: 
Sulphur Hole (Sulfur Hole; Sulphur pit), Mule Canyon, Yermo, Calico District (Daggett District), Calico Mts (Calico Hills), San Bernardino Co., California, USA

Metavoltine

Formula: 
Na6K2FeFe6(SO4)12O2·18H2O
Strunz: 
7.DF.35
Hardness: 
2.5
Type Locality: 
Zagh Mine (Tangeh Zagh mine; Madeni Zakh), Haji Abad town, Bandar Abbas (Bandar-e Abbas), Bandar-Abbas County, Hormozgan Province, Iran

Coquimbite

Formula: 
Fe2-xAlx(SO4)3·9H2O, x ~0.5
Strunz: 
7.CB.55
Hardness: 
2.5
Streak: 
white
Type Locality: 
Coquimbo Region, Chile