Ref ID:	35838
Ref Type:	Journal Article
Authors:	Rostoker, William Pigott, Vincent C. Dvorak, James
Title:	Direct reduction to copper metal by oxide-sulfide mineral interaction
Date:	1989
Source:	Archeomaterials
Abstract:	Experiments demonstrate that chalcopyrite ore can react with copper oxides to produce copper metal in a single smelting step. This information is interpreted to suggest a logical sequence in the development of copper smelting from small to large scale production. The efficacy of the co-smelting process suggests conscious technological change was not necessary when ancient smelters first used sulfide ores of copper. The problem of distinguishing among the various possible smelting processes on the basis of types of smelting slags is addressed.
Date Created:	2/18/2001
Volume:	3
Page Start:	69
Page End:	87