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Posnjakite & Malachite

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SHS672265

Posnjakite & Malachite

ex. dealer stock Peter Bosse (Kassel/Germany)

Description Tabs

Description
Locality: 
Richelsdorf District, Wildeck, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2 × 1.4 cm
Description

Posnjakite crystals with malachite on matrix

Mineral Data
What's on the rock

Posnjakite

Formula: 
Cu4(SO4)(OH)6·H2O
Strunz: 
7.DD.10
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Nura-Taldy W deposit, Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan...

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0