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Native Copper

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PCZ159637

Native Copper

Description Tabs

Description
Locality: 
Collins Mine, Ontonagon County, Michigan, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4 × 1.5 cm
Description

Native copper from the famous Michigan peninsula locality is commonplace however this specimen with numerous quartz casts is much more unusual. These quartz casts are the smooth hollow shaped spaces on the copper where at one time there was crystalline quartz. The quartz was later dissolved out leaving the original quartz outlines or casts. A few of the quartz crystals are still present.

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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