Photomicrograph of the rock shown in A. Clearwater County, Idaho. circa 1957.
Dates
Acquisition
1957
Summary
Album caption: Photomicrograph of the rock shown in A. Small plagioclase laths (pl) and biotite flakes (B) are included in anhedral grains of orthoclase (or) and quartz (Q). Crossed nicols. Clearwater county, Idaho. c. 1957. Published as figure 6B in U.S. Geological Survey. Professional paper 344-D. 1963.
Summary
Album caption: Photomicrograph of the rock shown in A. Small plagioclase laths (pl) and biotite flakes (B) are included in anhedral grains of orthoclase (or) and quartz (Q). Crossed nicols. Clearwater county, Idaho. c. 1957.
Published as figure 6B in U.S. Geological Survey. Professional paper 344-D. 1963.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Hietanen, A.M. Collection.
Rights
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