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Sphalerite Galena & Silver

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PJM42298

Sphalerite Galena & Silver

Description Tabs

Description
Locality: 
Proprietary Mine, Broken Hill, New South Wales, Australia
Size Range: 
Cabinet (10-18 cm)
Size: 
2.7 × 11.8 × 5.7 cm
Description

Refered to locally as brunckite, a now discredited name, we have a mass of colliform secondary cream coloured sphalerite completely cover the matrix. Scattered across the top of the specimen are numerous spongy galena crystal groups and some minor native silver in small botryoidal masses

Mineral Data
What's on the rock

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Silver

Formula: 
Ag
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0
Earthstones Australia

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