Ore Section

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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 Galbraith, circa 1936.

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Size: 3070px × 4127px
Location:
Photo credit: © Science History Images / Alamy / Afripics
License: Licensed
Model Released: No

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