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Native Copper & Native Silver On Prehnite

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CLB587417

Native Copper & Native Silver On Prehnite

Classic Locality

Description Tabs

Description
Locality: 
Osceola Mine, Osceola, Houghton County, Michigan, United States of America
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 6.5 × 4 cm
Description

Very rare massive crystalline copper with a bit of tarnished silver and copper wire combined with pale green prehnite. Really a fantastic specimen.

Mineral Data
What's on the rock

Copper

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

Silver

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

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa

Seller Information

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