Silver
Unknown Owner
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Beautiful branching crystal grouping of native silver. Very choice for this classic locality. In great condition all around.The White Pine mine, located in Ontonagon County, Michigan, was a major underground copper mine operated primarily by the White Pine Copper Company, a subsidiary of Copper Range. Geologically, the deposit is unique as a sediment-hosted stratiform copper deposit, where fine-grained chalcocite and native copper mineralization occur within the Proterozoic Nonesuch Shale, specifically at the contact with the underlying Copper Harbor Conglomerate. While small-scale mining at the site began as early as 1880, modern large-scale underground development commenced in 1952, with commercial production beginning in 1954 using room-and-pillar mining methods. The operation expanded to include a massive milling, smelting, and refining complex on-site, producing billions of pounds of copper until environmental regulations and declining copper prices led to the permanent cessation of mining operations in 1995.
Product details
SpeciesSilver
SizeMiniature
Dimensions4.5 x 1.7 x 0.4 cm
Added on07/27/2026
LocalityUSA, Michigan, White Pine Mine
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 07/2026 | Unknown Owner | Not disclosed |
| — | Weinrich Minerals | Not disclosed |
Learn more
Mineral guide
Learn about Silver
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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