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Krausite & Coquimbite

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MEX145343

Krausite & Coquimbite

Rare Mineral

Description Tabs

Description
Locality: 
Javier Mine, Huac-huas, Lucanas Province, Ayacucho Department, Peru
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 1.9 × 2.4 cm
Description

Pale yellow, monoclinic crystals of rare K-Fe-sulfate on violet coquimbite crystals.

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

Coquimbite

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