Native Copper Iron City Mine (Empire Mine), Mosquito Mining...
Native Copper Iron City Mine (Empire Mine), Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA 9.3 x 6.1 x 3.6 cm (3.66 x 2.4 x 1.42 in) Winding upwards in a gently curving arborescent display, this Copper specimen presents densely packed groups of well-formed dodecahedrons. Most of the specimen has a gentle patina, slightly iridescent in a few isolated areas. This piece comes with a custom acrylic base. HID09710052018 © 2024 Heritage Auctions | All Rights Reserved
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Native Copper Iron City Mine (Empire Mine), Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA 9.3 x 6.1 x 3.6 cm (3.66 x 2.4 x 1.42 in) Winding upwards in a gently curving arborescent display, this Copper specimen presents densely packed groups of well-formed dodecahedrons. Most of the specimen has a gentle patina, slightly iridescent in a few isolated areas. This piece comes with a custom acrylic base. HID09710052018 © 2024 Heritage Auctions | All Rights Reserved
