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Sphalerite traversed by minute veinlets of chalcopyrite and polybasite, Tonopah-Belmont mine. Nye County, Nevada. 1915.

Dates

Date Taken
1915

Summary

Sphalerite traversed by minute veinlets of chalcopyrite and polybasite; some of the veinlets in sphalerite are continuous with areas of the same minerals replacing galena this feature does not show in the picture. The veinlets are in the main formed by replacement, though possibly in small part fracture fillings. Photomicrograph of polished surface of ore from hanging-wall branch of Belmont vein, 1,200-foot level, Tonopah-Belmont mine. Nye County, Nevada. 1915. Plate 8-A, with graphics, in U.S. Geological Survey. Professional paper 104. 1918.

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Additional Information

Identifiers

Type Scheme Key
name photoLibrary bes00275
number photoLibrary 3782
batch photoLibrary btch260
number_in_book photoLibrary 275

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