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Malachite & Dioptase

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TPX1110263

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Description
Locality: 
Dos Adrianas Mine, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 4.3 × 3 cm
Weight: 
71.00gr
Description

Very nice and esthetic group of malachite crystals, possibly pseudomorphs of azurite and studded with small crystals of what appears to be dioptase on goethite matrix from this classic Chilean locality. unanalyzed specimen.

 

Mineral Data
What's on the rock

Malachite

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

Dioptase

Formula: 
CuSiO3·H2O
Strunz: 
9.CJ.30
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
Green
Type Locality: 
Altyn-Tyube dioptase deposit (Altyn-Tube), Altyn-Tyube area, Kirghiz Steppes (Asiatic Steppes), Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan...

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Start 16 Jan 18:00
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