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Pyromorphite On Coronadite

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PJM84336

Pyromorphite On Coronadite

Ex J & S Mommers Collection

Description Tabs

Description
Locality: 
Delpratt's Shaft, Broken Hill, Yancowinna County, New South Wales, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.6 × 1.8 cm
Description

A group of silvery black stalactite of coronadite are wonderfully debecked with bright yellow acicular pyromorphite on one side of this specimen.

 Collected from the 400'level  in Delpratts Shaft

 

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
Earthstones Australia

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