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Volborthite & Tyuyamunite

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CAM159786

Volborthite & Tyuyamunite

Description Tabs

Description
Locality: 
Monument #2 Mine, Yazzie Mesa, Apache County, Arizona, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 4.4 × 1.8 cm
Description

A very good example of volborthite, a copper-vanadate, with a rich coverage of olive-green bladed crystals on typical sandstone matrix, associated with yellow tyuyamunite crystals and green malachite.

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...

Tyuyamunite

Formula: 
Ca(UO2)2(VO4)2·5-8H2O
Strunz: 
4.HB.25
Hardness: 
1.5 - 2.0
Type Locality: 
Tyuya-Muyun Cu-V-U deposit (Radium Mine), Alai Range (Alay Range), Osh Oblast, Kyrgyzstan
Cartils Minerals

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