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Atacamite Olivenite & Picropharmacolite

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SUR15027

Atacamite Olivenite & Picropharmacolite

Description Tabs

Description
Locality: 
La Farola Mine, Cerro Pintado, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 5 × 1.5 cm
Description

An above-average plate of glistening emerald green atacamite needles with spherules of turquoise pseudomalachite and many acicular sprays of grass-green olivenite.

Excellent contrast with white botryoidal picropharmacolite.

Perfect condition and very aesthetic.

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

Olivenite

Formula: 
Cu2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Picropharmacolite

Formula: 
Ca4Mg(AsO4)2(HAsO4)2·11H2O
Strunz: 
8.CH.15
Crystal System: 
Monoclinic Needles and encrustations
Hardness: 
1.0 - 2.0
Streak: 
White
Type Locality: 
Ore dumps, Richelsdorf Smelter, Süss, Richelsdorf District, Hesse, Germany
Surrey Minerals