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Dwornikite

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SKY661367

Dwornikite

Rare Mineral

Description Tabs

Description
Locality: 
Lipovka Mine, Lipovsk, Rezhevsky District, Sverdlovsk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.3 × 0.5 cm
Description

Outstanding specimen of the extremely rare mineral dwornikite from one of the only three known localities worldwide.

The mineral occurs as sharp yellow-greenish acicular crystals covering a great part of the matrix.

Mineral Data
What's on the rock

Dwornikite

Formula: 
(Ni,Fe)SO4·H2O
Strunz: 
7.CB.05
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Colour: 
White
Streak: 
White
Type Locality: 
Ragra Mine (Minasragra), Huayllay District, Pasco Province, Pasco Department, Peru

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