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Make lump of mercury, 1 orpiment 1 and zinc 1 having equal quantity of each and give 3 saturations to the combination with the juice of phyllanthus niruri; close it in a Samputa and put a layer of cloth and clay over it. Give khāra (Salt or ash) under and over it. give it two fires. Mix 1 rati of the essence into 1 tola of tin. There becomes silver.1
Make a leaf of gajaveli (a kind of iron) and drench (dip) it in the juice of Breynia potens or that of Kutari (Kākarasana) 9 times, and get it dried up and put it into a crucible. Heat it. Mix the essence mā. 1 into 1 tola of muha Kam copper. Make the leaf of gajaveli iron thus. Quench it into the juice of Breynia pateus by heating and heating it in fire. Break the leaf and crush it, give the powder of it vala 1 into (1 tola of) tin. There will be silver.”
Take , sr. of zinc and make its leaf in Sambhara luna (Salt), give Salt layer by layer into an earthen pot and close its mouth, give it gajapuțāgni for 1 prahara. Mix that essence vāla 3 into 1 tola of copper, 1 māsā into 2 tolas of copper. Otherwise combine equal quantity of each, if not piercing, there becomes silver.3
Make a thorn piercing leaf of copper. Put it into crucible and melt it. Put 1 tola of the essence just as before said. Next melt it and quench it. There becomes silver of 21 carat certainly.4
Now the process of purifying copper.
Take mercury oxide of arsenic alum and godanti orpiment. Make copper purified, what does the samine do ? That is, gold or silver can be made.
Like this wash (purify) copper and give vāla 1 of somala (oxide of arsenic) into i tola of copper and quench the combination into alum. Combine silver with it. There becomes Jotakao (good pieces).
1. SRSS., Ch. 6. IX 2. SRSS. Ch. 6. 2 3. Ibid., Ch. 6. 3 4. SRSS. Ch. 6.5 5. SRSS., Ch. 6. 7 6. Ibid., Ch. 6. 8
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