A Geoscience Digital Image Library

TitleNative copper in the Copper Harbor Formation, Upper Penninsula, Michigan
DescriptionNative copper occurs in mafic to felsic volcanic flows, tuff, breccia and related sedimentary rocks. This is an example of copper in a sedimentary rock. It is a sandstone member of the Copper Harbor Fm. (Upper Penninsula, Michigan) and contains abundant small copper flecks and granules. The Copper Harbor and related formations were once major sources of copper, but the high grade ores have now been mined out. The sample is 7 cm across.
LocationUSA ▹ Michigan. Near White Pine.
PhotographerDarla Sondrol. 2001-06-25.
CollectionUniversity of North Dakota Mineralogy Collection #29.
Key wordsnative copper, ore, Michigan
Tech details976 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number856