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Smithsonite On Coronadite

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SUR16734

Smithsonite On Coronadite

Ex J Chivers collection
Classic Locality

Description Tabs

Description
Locality: 
Broken Hill, New South Wales, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5.5 × 2.5 cm
Description

Curious 'rice grain' crystals of sparkly pale grey smithsonite coating a lead-grey coronadite matrix.

Mineral Data
What's on the rock

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Streak: 
White

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
Surrey Minerals