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Polished sections of ore: Gangue is quartz, Gold King mine. La Plata County, Colorado. 1936.

Dates

Date Taken
1936

Summary

Photomicrograph of polished sections of ore: Intergrowth of krennerite and native tellurium; specimen etched with concentrated HNO3; cleavage pattern produced by etching is characteristic of krennerite. Gangue is quartz; reflected light 180 x. Gold King mine. Photo by F.W. Galbraith. La Plata County, Colorado. Circa 1936. Plate 11-A, in U.S.Geological Survey Professional paper 219. 1949.

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Data Owner :
U.S. Geological Survey

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Type Scheme Key
name photoLibrary eeb00092
number photoLibrary 9668
batch photoLibrary btch295
number_in_book photoLibrary 92

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