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Chrysocolla Psm Azurite & Malachite

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Description Tabs

Description
Locality: 
Lupoto Mine, Kakumba, Kipushi, Haut-Katanga, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3.5 × 3 cm
Weight: 
10.00gr
Description

This incredibly unusual material was discovered a few years ago in the Democratic Republic of Congo. Sky-blue color chrysocolla pseudomorph after azurite/malachite crystals with small malachite needles.
First there were azurite crystals replaced by malachite and chrysocolla.
Condition as on pictures.

Color is very difficult to reproduce in the pictures. Some pictured specimens show slightly different shades that seen with a human eye. Generally in my opinion the colors in reality are slightly prettier.

(37092)

Mineral Data
What's on the rock

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

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...

Malachite

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

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