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Hetaerolite

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JYJ617859

Hetaerolite

Description Tabs

Description
Locality: 
Mount Argentiera Mine, Calabona, Sassari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.3 cm
Description

Beautiful black hetaerolite crystals on matrix. 

References:
Fiori, S., Gorga, R., (1995), Hetaerolite e calcofanite di Monte Argentiera nella zona mineraria di Calabona - Vessus (Sardegna nordoccidentale), Il Cercapietre, notiziario del Gruppo Mineralogico Romano, N°22, pp.17- 21.

Mineral Data
What's on the rock

Hetaerolite

Formula: 
ZnMn2O4
Strunz: 
4.BB.10
Hardness: 
6.0
Colour: 
Black
Type Locality: 
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA