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Chrysocolla Psm

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KMF618027

Chrysocolla Psm

Pseudomorph

Description Tabs

Description
Locality: 
Lupoto Mine, Kakumba, Kipushi, Haut-Katanga, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 4 cm
Description

This fine intermediate find specimen is characterized by the most impressive aesthetics featuring the sharpest form and vibrant color comparable to the ‘new find’ material. This striking floater features numerous well defined former ‘azurite’ crystals arranged in striking radiant groups within the three dimensional structure and visible from almost any angle.

Featuring typical botryoidal plancheite casts with hollow interior where the original material has dissolved away completely leaving only the former crystal definition behind within the thin chrysocolla crusts. A cleaved crystal end reveals the inner malachite core which is telling of a secondary alteration of azurite to malachite to chrysocolla.

The exterior is vastly different compared to all preceding finds consisting of a finer texture. This specimen has a distinctive metallic ring to it when tapped with your fingernail unlike any other finds.

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

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