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Gold With Malachite & Boleite

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CYF628222

Gold With Malachite & Boleite

Description Tabs

Description
Locality: 
Inca de Oro, Chañaral Province/Copiapó Province, Atacama Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.5 × 3 cm
Description

A specimen of gold blebs on a fine grained malachite covered matrix.  there are also a few small blebs of boleite.

Mineral Data
What's on the rock

Gold

Formula: 
Au
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Boleite

Formula: 
KPb26Ag9Cu24(OH)48Cl62
Strunz: 
3.DB.15
Crystal System: 
Isometric
Hardness: 
3.0 - 3.5
Type Locality: 
Santa Rosalía (El Boleo), Boleo District, Mun. de Mulegé, Baja California Sur (BC Sur), Mexico