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Kobyashevite With Selenite On Calcite

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CYF781888

Kobyashevite With Selenite On Calcite

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 5.5 × 4.5 cm
Description

A relatively recent find of Kobyashevite with selenite on Calcite from Mexico. This specimen is a vug in a limonitic matrix which is covered in a thin coating of Kobyashevite and fine hair like selenite crystals. The contrast is quite spectacular. It is believed that these specimens are from post mining activity.

Mineral Data
What's on the rock

Kobyashevite

Formula: 
Cu5(SO4)2(OH)6·4H2O
Hardness: 
2.5 - 0.0
Type Locality: 
Kapital'naya mine, Vishnevye Mts (Vishnyovye; Cherry), Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Selenite

Variety Of: 

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Hardness: 
0.0

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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