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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.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Hietanen, Anna Martta

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ham00053.jpg thumbnail 723.29 KB
ham00053.tif 12.33 MB

Material Request Instructions

Available in the U.S. Geological Survey Denver Library Photographic Collection, Hietanen, A.M. Collection.

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