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Tennantite

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TJM557874

Tennantite

ex. W. W. Holt

Description Tabs

Description
Locality: 
Carn Brea Mine, Illogan, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5 × 2.5 cm
Description

From an old collection comes this specimen of Cornish tennanite. Black crystals, some ridescent, to 3.0 mm cover a 4.5 x 2.0 cm patch of this specimen. 

Cornwall is the type locality for the species.

Mineral Data
What's on the rock

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
Labels
Label Images - only: Tennantite
Label Images - only: Tennantite

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