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Fluorite Chalcopyrite Sphalerite & Galena

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PCZ542704

Fluorite Chalcopyrite Sphalerite & Galena

Description Tabs

Description
Locality: 
Jug Vein, Brownley Hill Mine, Cumbria, United Kingdom
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 1.5 cm
Description

Buy any two fluorite specimens from this auction and I will add a third British fluorite of similar size, and different locality, free of charge. 

An interesting and not unattractive specimen from a less commonly offered British fluorite locality. Transparent yellow fluorite crystals up to 1.8 cm on an edge. The fluorite has included chalcopyrite crystals and a scattering of galena and sphalerite crystals on the faces.

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

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
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