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Copper

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PDM789652

Copper

Classic Locality

Description Tabs

Description
Locality: 
Lake Superior, Keweenaw County, Michigan, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3.7 × 2.1 cm
Description

Block of native copper with a green alteration coating. Classic material from an old German collection built previous to the Second World War, specimen #96. Includes an old Dr. F.Krantz label. Ex. Jean De Marche.

Mineral Data
What's on the rock

Copper

Formula: 
Cu
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

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