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Chalcophanite

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CR58665

Description Tabs

Description
Locality: 
Precaución Mine, Cabezo de San Ginés, El Estrecho de San Ginés, Cartagena, Murcia, Spain
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2 × 1.7 cm
Description

Black botryodal chalcophanite from an old mine in Spain.

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