Copper (Spinel-Twinned)
Unknown Owner
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Emanating from a central spine which itself is a giant, elongated spinel twinned copper crystal, are a series of parallel growth copper spinel-twins to 1.75 cm in length. The crystals have a patina colored a rich brownish-red (untouched by acidizing) with the brighter red probably representing a thin coating of cuprite. In cross section, the specimen resembles a forest or a fishbone. Architecturally, this looks a lot like a fish skeleton and so you can see why the nickname "herringbone coppers" has been attached to these. Striking specimen, and a very stylish old classic. Out of all the Michigan coppers, this is really one of the few styles totally unique and recognizable to one specific mine.
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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