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Herbertsmithite & Gordaite

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SKY729414

Herbertsmithite & Gordaite

Type Locality

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Description
Locality: 
San Francisco Mine, Caracoles, Sierra Gorda, Antofagasta Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.5 × 0.4 cm
Description

Deep green crystals of herbertsmithite, a very rare Cu-Zn oxichloride known from a few localities worldwide associated to pale blue gordaite.

Herbertsmithite gained attention in March 2007 when it was reported that it has very specific and unusual physical properties that make it to behave as a new type of matter.

Mineral Data
What's on the rock

Herbertsmithite

Formula: 
Cu3Zn(OH)6Cl2
Strunz: 
3.DA.10c
Hardness: 
3.0 - 3.5
Type Locality: 
Los Tres Presidentes Mine, Caracoles, Sierra Gorda District, Antofagasta Province, Antofagasta Region, Chile

Gordaite

Formula: 
NaZn4(SO4)(OH)6Cl·6H2O
Strunz: 
7.DF.50
Crystal System: 
Trigonal
Hardness: 
2.5
Type Locality: 
San Francisco Mine (Beatrix Mine), Caracoles, Sierra Gorda District, Antofagasta Province, Antofagasta Region, Chile

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