A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Native copper in copper ore conglomerate |
|---|---|
| Description | Native copper (copper found in a chemically uncombined state) has been mined for centuries and now is essentially depleted as an economically viable ore. Other copper minerals are far more important as ores today, but native copper is still found in limited quantities in once-active mining regions. These finds produce valuable mineralogical specimens and ornamental pieces. This sample, 14 cm across, is from the Copper Harbor Formation in the Upper Penninsula of Michigan. It is a conglomerate that contains native copper in interstices between jasper pebbles and smaller clasts. |
| Location | USA ▹ Michigan. Near White Pine. |
| Photographer | Darla Sondrol. 2001-06-25. |
| Collection | University of North Dakota Mineralogy Collection #29. |
| Key words | native copper, Copper Harbor Formation, copper ore, Michigan, conglomerate |
| Tech details | 947 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 841 |
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