History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c18.s4.t4.23
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c18.s4.t4.23
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v1.c18.s4.t4.23
In *Gem Stones* : Ruby, Pearl, Coral, Emerald, Topaz, Diamond, Sapphire, Hessonite/Cinnaman Stone, Cat’s eye. These are either treated with *Śodhana* and/or *Maraṇa* process for converting these into desired compounds.