Copper (twinned)
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Copper (twinned), 15.2 cm, from the Quincy mine, Hancock, Houghton County, Michigan. The specimen was once owned by Baroness Angela Georgina Burdett-Coutts, later passed to Sir Arthur Russell, George L. English, Lazard Cahn, Northwestern University, Gene Schlepp of Western Minerals, and finally to the University of Delaware.
Product details
Species
SizeLarge Cabinet
Dimensions15.2 cm
Added on02/13/2026
Locality
Publications
- Mineralogical Record Mineral Collection University Of Delaware page 52
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| — | Gene Schlepp of Western Minerals | Not disclosed |
| — | Northwestern University | Not disclosed |
| — | Lazard Cahn | Not disclosed |
| — | George L. English | Not disclosed |
| — | Sir Arthur Russell | Not disclosed |
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Mineral guide
Learn about Copper
native copper with spinel-twinned crystals and arborescences; notable from Lake Superior, Itauz, Dongchuan, Corocoro, prized for color and localities.Regional guide
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