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Goldichite & Coquimbite

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ESM578381

Goldichite & Coquimbite

Description Tabs

Description
Locality: 
Dexter #7 Mine, Calf Mesa, Emery County, Utah, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3.5 × 3.5 cm
Description

Yellow goldichite crystals on purple coquimbite crystals

Mineral Data
What's on the rock

Goldichite

Formula: 
KFe(SO4)2·4H2O
Strunz: 
7.CC.40
Hardness: 
2.5 - 0.0
Streak: 
White
Type Locality: 
Dexter No. 7 Mine, Calf Mesa, San Rafael District (San Rafael Swell), Emery Co., Utah, 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