Minerals and Metals in Ancient India v1.c15.s4.7
Minerals and Metals in Ancient India v1.c15.s4.7
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v1.c15.s4.7
It is unfortunate that Hegde did not conduct phase studies on the ancient slag. The modern Khetri Copper Plant produces slag which contains phases such as magnetite Fe₃O₄ and copper ferrites such as CuFeO₂, Cu₆Fe₃O₇ and some free copper oxide. (Sharma and Shekhawat, 1984) Similar phase studies on the ancient slag would have shown whether (a) such a slag could be derived from Khetri copper ore containing specific gangue materials, and (b) if so, what temperature and other physico-chemical conditions might have been employed.