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Hydrozincite & Aurichalcite

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CLB102584

Hydrozincite & Aurichalcite

Description Tabs

Description
Locality: 
Münsterbusch Slag locality, Stolberg, Cologne, North Rhine - Westphalia, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.3 × 4.2 cm
Description

This is a slag mineral specimen. Was labeled "Aurichalcite, gypsum, willemite'. I think it's more safe to say it's hydrozincite, probably (with) hydrocerussite.

Mineral Data
What's on the rock

Hydrozincite

Formula: 
Zn5(CO3)2(OH)6
Strunz: 
5.BA.15
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Bad Bleiberg, Bleiberg District, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria

Aurichalcite

Formula: 
(Zn,Cu)5(CO3)2(OH)6
Strunz: 
5.BA.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
1.0 - 2.0
Type Locality: 
Loktevskoye Mine (Loktevskii Mine), Upper Loktevka River, Rudnyi Altai, Altaiskii Krai, Western-Siberian Region, Russia

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