History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c36.s6.3
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c36.s6.3
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c36.s6.3
*Makshikam* (pyrites) :—Pyrites is of two kinds: golden and silvery; FeS₂ is brass yellow in colour, but there are other pyrites-like minerals which are silver-white; for instance, cobaltite, CoS₂.CoAs₂; lollingite, FeAs₂ (S); leucopyrite, Fe₃ As₄. Copper pyrites has a deep yellow colour.