Ore Section
Photomicrograph of polished sections of ore showing supergene gold veinlets (labeled g) deposited in fractures in hessite (h), a silver telluride mineral from Eagle Pass Mine, La Plata County, Colorado. The large area of white mineral is coloradoite, and the gangue is quartz. Surface etched with, 1:1 HNO3; reflected light 157x. Photo by F.W. Galbraith, circa 1936
Picture No
12697036
Media ID
47683374
Size
3070px x 4127px
(2.6MB)
Credit
U.S. Geological Survey/Science Source/Mary Evans
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Cross-section Enrichment Geologic Geological Geologically Micrograph Micrography Microscopy Mineral Mineralogy Ores Petrology Photomicrograph Polished Resources Veins
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