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Pyromorphite On Coronadite

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GND96538

Pyromorphite On Coronadite

Classic Locality

Description Tabs

Description
Locality: 
Broken Hill, New South Wales, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 3.1 × 0.7 cm
Description

A rather nice combination of pale green pyromorphite partially coating a thin botryoidal crust of black coronadite.

While this is not an uncommon combination for Broken Hill, this material has become increasingly difficult to obtain. No damage.

Mineral Data
What's on the rock

Pyromorphite

Formula: 
Pb5(PO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Zschopau, Erzgebirge, Saxony, Germany

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