Boxwork structure of magnetite. La Plata County, Colorado. 1936.
Dates
Date Taken
1936
Summary
Photomicrograph of polished sections of ore. Boxwork structure of magnetite; chalcopyrite has filed in boxwork and veinlet of pyrite cuts magnetite. La Plata County, Colorado. 1936.
Summary
Photomicrograph of polished sections of ore. Boxwork structure of magnetite; chalcopyrite has filed in boxwork and veinlet of pyrite cuts magnetite. La Plata County, Colorado. 1936.
This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html