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Investigation of low-grade and complex ores in Colorado

Milling methods in the tri-state zinc district

Proposed method for reducing mineral waste in the Wisconsin zinc district, Wisconsin

Preliminary ore dressing tests to recover manganese in rhodochrosite ores.

Published Year

• 1920-1929 (4) *

Subject

• Ore-dressing (2)
• Zinc--Metallurgy (2)
• Iron Ores (1)
• Iron ores (1)
• Manganese (1)
• Ore deposits--Colorado (1)
• Ore dressing (1)
• Ores (1)
• Ores--Colorado (1)
• Ores--Sampling and estimation (1)
• Zinc (1)
• Zinc mines and mining (1)
• Zinc mines and mining--Wisconsin (1)

Author

• Coghill, Will H. (4) *
• Anderson, Carl Otto, (2)
• DeVaney, F. D. (1)
• Hornor, R. R. (1)

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