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Brochantite & Atacamite

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MGR711883

Brochantite & Atacamite

Description Tabs

Description
Locality: 
La Farola Mine, Cerro Pintado, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.6 × 2.9 cm
Description

Dark green atacamite with thin needles of neon-green brochantite. This is a really uncommon piece for the locality, contrast is very nice and both minerals are in very fine condition.

Mineral Data
What's on the rock

Brochantite

Formula: 
Cu4(SO4)(OH)6
Strunz: 
7.BB.25
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Mednorudyanskoye Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

Atacamite

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