Photomicrograph showing small round garnet crystals (black) in a microcline-bearing light-colored band in the course-grained gneiss. Clearwater County, Idaho. circa 1950.
Dates
Date Taken
1950
Summary
Album caption: Photomicrograph showing small round garnet crystals (black) in a microcline-bearing light-colored band in the course-grained gneiss. Just north of locality 428. pla-plagioclase; mi-microline; qu-quartz. crossed nicols. Clearwater County, Idaho. c. 1950. Published as figure 61B in U.S. Geological Survey. Professional paper 344-A. 1962.
Summary
Album caption: Photomicrograph showing small round garnet crystals (black) in a microcline-bearing light-colored band in the course-grained gneiss. Just north of locality 428. pla-plagioclase; mi-microline; qu-quartz. crossed nicols. Clearwater County, Idaho. c. 1950.
Published as figure 61B in U.S. Geological Survey. Professional paper 344-A. 1962.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Hietanen, A.M. Collection.
Rights
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