Copper (Spinel-Twinned)
Unknown Owner
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This is a solid mass, composed almost completely by spinel-twinned copper crystals which reach over 3 cm in length. The surface patina is a rich brownish-red, natural and unburned by acid as usual; with the brighter red coloring probably due to a coating of cuprite. The specimen appears to be a floater, with part of the back side covered by microcrystals of a light tan-colored mineral, possibly calcite. Overall this is a more massive piece than one normally finds from Champion finds, heavy and with good impact and presence.
Product details
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2024 | Unknown Owner | Not disclosed |
| — | The Arkenstone | 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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