Native Copper and Silver Adventure mine, Greenland, Greenland Township,...
Native Copper and Silver Adventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA 13.8 x 6.4 x 5.4 cm ( 5.43 x 2.52 x 2.13 in) This combination specimen presents robust Copper crystals accompanied by bright patches of native Silver. Especially visible from the rear view, the Copper transitions from larger crystals to small, wispy "leaves." While much of the specimen has a nice metallic luster, the Copper is accented with a darker patina. This piece comes with a custom acrylic base. HID09710052018 © 2024 Heritage Auctions | All Rights Reserved
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Native Copper and Silver Adventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA 13.8 x 6.4 x 5.4 cm ( 5.43 x 2.52 x 2.13 in) This combination specimen presents robust Copper crystals accompanied by bright patches of native Silver. Especially visible from the rear view, the Copper transitions from larger crystals to small, wispy "leaves." While much of the specimen has a nice metallic luster, the Copper is accented with a darker patina. This piece comes with a custom acrylic base. HID09710052018 © 2024 Heritage Auctions | All Rights Reserved
