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Pentlandite & Chalcopyrite

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PDM789670

Pentlandite & Chalcopyrite

Classic Locality

Description Tabs

Description
Locality: 
Varallo Sesia, Vercelli Province, Piedmont, Italy
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5.5 × 3.3 cm
Description

Black pyroxenite rock cemented by yellow chalcopyrite and pale bronze coloured masses of probably pentlandite. From an old German collection built previous to the Second World War, specimen #5. Includes an old Dr. F.Krantz label. Ex. Jean De Marche.

Mineral Data
What's on the rock

Pentlandite

Formula: 
(Fe,Ni)9S8
Strunz: 
2.BB.15
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0
Type Locality: 
Craignure Mine, Inveraray, Strathclyde (Argyllshire), Scotland, UK

Chalcopyrite

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

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