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Heterogenite & Chrysocolla

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WND804012

Heterogenite & Chrysocolla

Classic Locality

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Description
Locality: 
Star of the Congo Mine, Lubumbashi, Haut-Katanga, DR Congo
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2.6 × 2.5 cm
Description

Both species, heterogenite as black and chrysocolla as blue-green botryoidal aggregates on matrix. A contrastful specimen from the well known locale.

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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Start 11 Oct 18:00
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Our Terms & Conditions can be found at:​ https://www.wendel-minerals.com/en/shop/agb.php

 

 

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