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Silver and Copper (halfbreed)
Silver and Copper (halfbreed) Silver and Copper (halfbreed) Silver and Copper (halfbreed)
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Silver and Copper (halfbreed) (Ref: 14.1-269)

Caledonia Mine, Mass City, Ontonagon County, Michigan, United States
22mm x 17mm x 12mm
minID: L61-7HD
$110
A US classic a choice Halfbreed of Silver and Copper that shows perfectly the two metallic colors with very bright luster. Looks fine on all sides, the Halfbreed masses from this region are unlike anything from other places. The copper mined in the Upper Pennisula of Michigan tended to have some small percentage of Silver mixed in. This was especially desirable in the early manufacturing of electrical wires.
Data last checked on 20th Sep 2022 - specimen may no longer be available

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See Also

Silver and Copper
Calumet, Michigan, United States
$120
67mm x 31mm x 17mm
Silver with Copper
White Pine Mine, White Pine, Ontonagon County, Michigan  USA
$376 *
29mm x 20mm x 2mm
Silver on Copper
Keweenaw Co., Michigan, United States
$350
46mm x 27mm x 16mm
Silver with Copper (variety halfbreed)
Lake Superior Mine, Phoenix, Keweenaw County, Michigan  USA
$436 *
27mm x 26mm x 18mm
Copper with Silver
Keweenaw Peninsula, Michigan, USA
$200
33mm x 25mm x 16mm
Silver on Copper
Escanaba, Michigan, USA
$250
39mm x 25mm x 20mm
Cuprite with Silver and Copper
Poteryaevskoe Mine, Rubtsovskoe deposit, Siberia, Russia
$400
32mm x 20mm x 20mm
Native Silver with minor Copper
Wolverine Mine, Wolverine, Houghton Co., Michigan, United States
$940
122mm x 52mm x 10mm
Cuprite with Silver and Copper
Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
$600
26mm x 25mm x 19mm
Copper
Caledonia Mine, Mass City, Ontonagon County, Michigan  USA
$188 *
132mm x 74mm x 35mm
Copper - branching crystals on matrix
Cliff Mine, Pheonix, Keweenaw County, Michigan, United States
$80
62mm x 36mm x 25mm
Copper
Cliff Mine, Pheonix, Keweenaw County, Michigan, United States
$220
161mm x 20mm x 5mm
Cuprite on Copper
Rio Tinto Mine, Mountain City. Elko Co. Nevada. United States
$124 *
37mm x 20mm x 13mm
Copper - spinel twin
Ray Mine, Ray District, Dripping Springs Mountain, Pinal county, Arizona, United States
$90
28mm x 9mm x 5mm
Copper with Cuprite
Ray Mine, Ray District, Dripping Springs Mountain, Pinal county, Arizona, United States
$160
61mm x 57mm x 49mm
* price is an approximate conversion and may not be accurate.

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