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On its getting cooled down, take it out. Crush it for 1 prahara, then melt prādupo * (pradepo) and put hā (taka ?) (gold ?) or hā (ritāla=orpiment), grind both of them, mix them together, quench both of them in the juice of Dhākano-1 Sr. and pāņdu to. (tā) 1 by heating and heating them till there is rasa (juice or liquid). Next put rasa : 1/2 Sr. into an earthen bowl, put 1 layer of cloth and clay over it and heat it in fire for 4 praharas; good copper is produced from silver. 1
The process of purification of copper til (1) Fake grains (powder) of copper with the Persian vorek (borax). Make
a hell into Biyā, fill a paisa bhar of the juice of Horse Radish tree.
There becomes white copper.? (2) Quench copper in the juice of the inner bark of the roof of Horse
Radish tree. (Saraghuānā). Next give it gajapuțāgni for four praharas
by putting it into an earthen vessel. There will be best copper.3 (3) Make copper leaf heated and quench it into the horse's urine by
making it redden (in fire) for 21 times. Next put it into chācht luna (a kind of salt) for 1 prahara and wash it. Thus put new and new chächi luņa (i.e. repeat the process) for 21 days. Next rub it for seven days. Keep it by dipping it into the juice of ginger. Querch that copper by making it hot red in fire for 7 or 14 or 21 times. Thus
know the process of making copper purified. * (4) If copper is smeared with mica, mercury borax, natron, the excreta' of
pigeon and the milk of calotropis gigantea, its blackness is destroyed
(removed) by one puța (roasting)”. (5) Boil 5 Srs. of leaf of the five leaved chaste tree-vitex trifolia (Nigodi
pāna), turmeric-1 Sr. and water-8 srs. together-keep 1 sr. of the mixture. Keep by boiling them. Next heat the leaves of copper and
purify them by quenching them into that water (essence) seven times. (6) Put tamarind into the milk of she-buffalo and make it loose (dhilusu),
pour coppe-vala 7 into it or quench a copper leaf into it by making it heated in fire. There takes place the purification of copper.? X Not identified.. . .. 1. SRSS., Ch. 8, 34, 3. Ibid., Ch. 10. 74 4. SRSS., Ch. III. 66X 5. Ibid., Ch. IX. 50. 6. Ibid., Ch. 10.7. 7. ŚRSS., Ch. 12.1
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