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Bradaczekite & Johillerite

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GMN147135

Bradaczekite & Johillerite

Type Locality

Description Tabs

Description
Locality: 
Yadovitaya Fumarole, Second Scoria Cone, Great Fissure, Tolbachik Volcano, Kamchatka Krai, Russian Federation
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.4 × 1 cm
Description

Azure blue bradaczekite aggregates , with violet johillerite on volcanitic matrix

Mineral Data
What's on the rock

Bradaczekite

Formula: 
NaCu4(AsO4)3
Strunz: 
8.AC.10
Hardness: 
0.0
Colour: 
Dark Blue
Type Locality: 
Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia...

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

Seller Information

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