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Copper replacing Agate Nodule
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Unknown Owner
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This elegant set of sliced agate specimens shows an agate nodule replaced, band by band to varying degrees, by Copper. This is a true Copper Country rarity (and the best I have personally seen for sale), and I have seen only several in my lifetime. This matched pair is a whole nodule, neatly sliced and with a good polish. It is one of those unusual and curious things that adds to a "portfolio" of the Copper Country classics, which we all have already. I purchased this from the private collection of a long-term mining and dealing family from the Upper Peninsula, simply to have it because I had never had the chance to buy or sell one before. Ex. Sean Finneson. Published in Mineralogical Record: Mineral Collectors of the Pacific Northwest (Sept 2019).
Product details
SizeMiniature
Dimensions2.6 x 2.4 x 0.6 cm
Added on10/23/2024
LocalityUSA, Michigan, Calumet & Hecla Mine
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2024 | Unknown Owner | Not disclosed |
| — | The Arkenstone | Not disclosed |
Learn more
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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