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Photomicrograph of the field of figure A with crossed nicols. Clearwater County, Idaho. circa 1957.

Dates

Date Taken
1957

Summary

Album caption: Photomicrograph of the field of figure A with crossed nicols. Plagioclase (pl) occurs in lath-shaped crystals that are twinned and zoned. Quartz (Q) is intersticial. Clearwater county, Idaho. c. 1957. Published as figure 9B in U.S. Geological Survey. Professional paper 344-D. 1963.

Contacts

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

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ham00012.jpg thumbnail 915.75 KB image/jpeg
ham00012.tif 13.39 MB image/geotiff

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