
Publication
MICRO STRUCTURAL PARTICULARITIES OF LOW-FINENESS GOLD
(SGEM Scientific GeoConference, 2010, VL. Samusikov, L. Pavlova)
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The native gold containing high silver, extracted from gold bulk of few kilograms, was comprehensively researched. The studied through the optical microscope gold samples seem homogeneous and their fineness varies from 200 to 500 ppm. The fineness deviates from the mean value about В±20-30 ppm, however zonation is not observed. When the gold samples were dissolved in nitric acid, only silver was released into solution and gold remained in the insoluble remainder as the spongy-porous skeleton, consisting of pure go...
Geology2010
