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Tetrahedrite

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CAM519075

Tetrahedrite

Classic Locality

Description Tabs

Description
Locality: 
Herodsfoot Mine, Lanreath, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 7.4 × 7 cm
Largest Crystal: 
1.00cm
Description

A very good tetrahedrite specimen with a rich coverage of sharp grey metallic tetrahedrite crystals up to 1 cm on quartz matrix. Most tetrahedrite crystals are not covered with the typical chalcopyrite coating, unusual for this locality, although the crystals on the bottom do have this coating. Probably collected in the 1970's or 1980's and not from the old classic period. Ex Gerhard Grude collection.

Mineral Data
What's on the rock

Tetrahedrite

Formula: 
Cu6[Cu4(Fe,Zn)2]Sb4S13
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0
Cartils Minerals

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