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Malachite Psm Baryte

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PDM772451

Malachite Psm Baryte

Pseudomorph

Description Tabs

Description
Locality: 
Shangulowe Mine, Kambove, Haut-Katanga, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3 × 1.9 cm
Description

A good and rare old specimen with well-defined thin tabular crystals of baryte completely replaced by lustrous polycrystalline malachite. The aggregate is a flower-like association from the Shangulowé, where these world-class pseudomorphs of malachite after baryte were found long ago.

This was collected before 1960, it is from the stock of Robert Verdoodt, who was working in the laboratories of Union Minière du Haut-Katanga and evacuated to Belgium after the beginning of the Congo crisis in 1960.

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

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

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