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Volborthite & Chrysocolla

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ESM222241

Volborthite & Chrysocolla

Description Tabs

Description
Locality: 
Copiapó Province, Atacama Region, Chile
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.5 × 4 × 0.9 cm
Description

Clusters of yellow volborthite blades on bluish-green botryoidal chrysocolla

Mineral Data
What's on the rock

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...

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5