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Searching for Sulfides at the Blackbird Cobalt-Copper Mine

Detailed Description

USGS scientist Art Bookstrom uses a hand-lens to search for sulfide minerals in oxidized copper-cobalt-bearing siltite of the banded siltite unit of the Apple Creek Formation, exposed in the Blacktail pit of the Blackbird cobalt-copper mine, Salmon River Mountains, east-central Idaho.


Public Domain.