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Heterogenite & Chrysocolla

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ERO1037390

Description Tabs

Description
Locality: 
Star of the Congo Mine, Lubumbashi, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.3 × 7 × 3.6 cm
Weight: 
157.00gr
Description

Beautiful black, botryoidal heterogenite with turquoise color chrysocolla from L'Etoile du Congo Mine (Star of the Congo Mine). Extra formation.

No major damages.

(37960)

Mineral Data
What's on the rock

Heterogenite

Formula: 
CoO(OH)
Strunz: 
4.FE.20
Crystal System: 
Trigonal
Hardness: 
3.0 - 5.0
Type Locality: 
Wolfgang Maaßen Mine field, Schneeberg District, Erzgebirge, Saxony, Germany

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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$40
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