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Atacamite & Gypsum

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ESM642574

Atacamite & Gypsum

Classic Locality

Description Tabs

Description
Locality: 
Lily Mine, Humay, Pisco, Ica Department, Peru
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 2.2 × 1.2 cm
Description

Lustrous green atacamite crystals in and on clear gypsum

Mineral Data
What's on the rock

Atacamite

Formula: 
Cu2(OH)3Cl
Strunz: 
3.DA.10a
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Atacama Region, Chile

Gypsum

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