Impure product of copper smelting
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MATTEImpure product of copper smelting.
regulia. the metallic mass that forms beneath the slag at the bottom of the crucible or furnace in smelting ores b. impure intermediate product obtained in smelting ores
regulusa. the metallic mass that forms beneath the slag at the bottom of the crucible or furnace in smelting ores b. impure intermediate product obtained in smelting ores
speissA mixture of impure arsenides and antimonides of nickel, cobalt, iron, and other metals, produced in the smelting of cobalt and other ores
tuttiesimpure oxide of zinc obtained from the flues of smelting furnaces, or a similar substance occurring as a native mineral, used chiefly as a polishing powder
tuttyimpure oxide of zinc obtained from the flues of smelting furnaces, or a similar substance occurring as a native mineral, used chiefly as a polishing powder