Silver, Copper
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Silver and copper, 14.9 cm, from the North Kearsarge mine, Kearsarge amygdaloid lode, Calumet, Houghton County, Michigan. Ex American Museum of Natural History (1972), collection of Lincoln Ellsworth (1880–1951). From I. Philip Scalisi (1983). Pictured in Rocks & Minerals, July–August 2007. Jeff Scovil photo.
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Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| — | Lincoln Ellsworth | Not disclosed |
| — | American Museum of Natural History | Not disclosed |
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Mineral guide
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native silver with wire, leaf, and dendritic forms, bright luster and patina; prized for rare isometric crystals and iconic localities in collections.Regional guide
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