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Coquimbite

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MGR919350

Coquimbite

New Discovery

Description Tabs

Description
Locality: 
Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 6 × 4.4 cm
Description

Fine cluster of intense purple coquimbite nicely placed on top of its mother rock. First pic was done with some backlight, second pic is with daylight conditions only.

Mineral Data
What's on the rock

Coquimbite

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