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Coronadite

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GND46018

Coronadite

Classic Locality

Description Tabs

Description
Locality: 
Broken Hill, New South Wales, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3 × 2.9 cm
Description

Black botryoidal coronadite showing 'onion shell' layering. Very good for the species.

Mineral Data
What's on the rock

Coronadite

Formula: 
Pb(Mn4+6Mn3+2)O16
Strunz: 
4.DK.05a
Hardness: 
4.5 - 5.0
Type Locality: 
Horse-Shoe shaft (Horseshoe Mine), Coronado Mine (Coronado Mining Co. property; Arizona Copper Co. group [in part]), Coronado vein, Copper Plate Gulch, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA
Gondwana Minerals