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Fluorite Galena & Sphalerite

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PJM39918

Fluorite Galena & Sphalerite

Joe Blackwell Collection

Description Tabs

Description
Locality: 
Zinc Corporation Mine, Broken Hill, Yancowinna County, New South Wales, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 6.4 × 5 cm
Description

A clacite  and mixed sulphides provides the matrix for this fluorite specimen. The matrix was initaially covered with kaolinite and was followed by the formation of numerous poorly formed galena and sphalerite crystals, onto theis background pale blur fluorite octahedra have formed. this specimen is from the 18 level of the zinc Corporation Mine

Mineral Data
What's on the rock

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Galena

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

Sphalerite

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

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