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Johillerite

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JYJ781226

Johillerite

Description Tabs

Description
Locality: 
Tolbachik Volcano, Kamchatka Krai, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.4 × 0.8 cm
Description

Dark purplish-blue johillerite from the Tolbachik volcano, Kamchatka, Russia. Rich specimen. 

 

Mineral Data
What's on the rock

Johillerite

Formula: 
Na(Mg,Zn)3Cu(AsO4)3
Strunz: 
8.AC.10
Hardness: 
3.0
Colour: 
Violet
Streak: 
White
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia