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Chalcophanite & Natrojarosite

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CLB138407

Chalcophanite & Natrojarosite

ex coll. Wendel
Classic Locality

Description Tabs

Description
Locality: 
Lavrion District Mines, Attiki Prefecture, Greece
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 3.3 × 2.1 cm
Description

Small dark black chalcophanite crystals on dark brown dolomite and honey-orange-colored natrojarosite crystals in a vug.

Mineral Data
What's on the rock

Chalcophanite

Formula: 
(Zn,Fe,Mn)Mn3O7·3H2O
Strunz: 
4.FL.20
Crystal System: 
Trigonal
Hardness: 
2.5
Type Locality: 
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Natrojarosite

Formula: 
NaFe3(SO4)2(OH)6
Strunz: 
7.BC.10
Hardness: 
2.5 - 3.5
Type Locality: 
Soda Springs Valley, Mineral Co., Nevada, USA

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