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Fluorite Covellite & Tennantite

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FCM619420

Fluorite Covellite & Tennantite

Fluorescent

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4.3 × 3.8 cm
Largest Crystal: 
0.30cm
Description

This is a very attractive specimen featuring sharp, slightly frosted fluorite cubes to 3mm sitting on crystals of covellite and tennanite surrounded by a contrasting white baryte matrix. The fluorite is fluorescent under UV, LW >SW.

 

 

Previous labels supplied (not photographed)
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

Covellite

Formula: 
CuS
Strunz: 
2.CA.05a
Crystal System: 
Hexagonal
Hardness: 
1.5 - 2.0
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Tennantite

Formula: 
Cu6[Cu4(Fe,Zn)2]As4S13
Strunz: 
2.GB.05
Crystal System: 
Isometric
Hardness: 
3.0 - 4.5
Type Locality: 
Cornwall, England, UK

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