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Vashegyite & Volborthite

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MNR689391

Vashegyite & Volborthite

Description Tabs

Description
Locality: 
Kociha, Rimavská Sobota County, Banská Bystrica Region, Slovakia (Slovak Republic)
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 5.3 × 3.6 cm
Description

Rare specimen of massive vashegyite white aggregate. Minor yellow/green volborthite is present as well. Larger piece like this is seldomly seen on the market now.

Mineral Data
What's on the rock

Vashegyite

Formula: 
Al11(PO4)9(OH)6·38H2O
Strunz: 
8.DB.10
Hardness: 
2.0 - 3.0
Type Locality: 
Železník (Vashegy), Sirk, Revúca Co., Banská Bystrica Region, Slovakia

Volborthite

Formula: 
Cu3(V2O7)(OH)2·2H2O
Strunz: 
8.FD.05
Hardness: 
3.5
Type Locality: 
Sofronovskii Cu Mine, Yugovskii Zavod, Perm', Permskaya Oblast', Middle Urals, Urals Region, Russia...