While Zinc was unknown in Europe until the end of 16th century, India had been producing Zinc at a large scale since the 12thcentury onwards. The mines in Rajasthan have given an evidence of zinc production since 6th century BC.  Zinc was distinctly recognized as a metal under the designation of “Yasada” or “Jasada” (Yashad) in the medical dictionary written in the year 1374.

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