AU18904A - An improved electrical hydrostatic amalgamating apparatus for extracting gold and silver from rock ores, slimes tailings, pyrites andother products
- Google Patents
An improved electrical hydrostatic amalgamating apparatus for extracting gold and silver from rock ores, slimes tailings, pyrites andother products
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Improvements in the Treatment of Slimes or Tailings for the Extraction of Gold or Silver therefrom by Means of Solvents, and Apparatus for that Purpose.