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Aurichalcite On Malachite Psm Azurite

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CLB90065

Aurichalcite On Malachite Psm Azurite

Pseudomorph

Description Tabs

Description
Locality: 
Lavrion District Mines, Attiki Prefecture, Greece
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 4.4 × 4.6 cm
Description

This is a very unusual, rarely seen pseudomorph specimen.

Most prominent are several, rather large pseudomorphed crystals of green malachite after azurite with a satin luster, but there are also several etched cubes which could be limonite after pyrite.

Accompanying mineral is aurichalcite and a little second generation azurite.

Mineral Data
What's on the rock

Aurichalcite

Formula: 
(Zn,Cu)5(CO3)2(OH)6
Strunz: 
5.BA.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
1.0 - 2.0
Type Locality: 
Loktevskoye Mine (Loktevskii Mine), Upper Loktevka River, Rudnyi Altai, Altaiskii Krai, Western-Siberian Region, Russia

Malachite

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

Azurite

Formula: 
Cu3(CO3)2(OH)2
Strunz: 
5.BA.05
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Chessy copper mines, Chessy-les-Mines, Le Bois d'Oingt, Rhône, Rhône-Alpes, France...

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