Rasārṇavakalpa (English critical edition)

O Goddess, purify the gandhaka (sulfur) in the juice of the niśācara (night-blooming plant), then process it seven times. Afterward, mix it with the juice of dvipadā (a creeping herb). (77)

Apply this to a copper sheet; when refined, it becomes like gold. If mercury is perfectly digested with this sulfur, it becomes a śata-vedhī (capable of transmuting one hundred parts of base metal into gold). (78)

Add gandhaka (sulfur) to that mercury and coat the metal sheet; heat it in the sun. Then, mix it with three times its quantity of tāra (silver). (80)

When mixed with half the amount of gold, the gold-equivalent reaches equality. Purify the tālaka (orpiment) seven times in the juice of the niśācara plant. (81)

Use this to treat vaṅga (tin) and further refine it with silver. Treat the mercury with that silver; this will stabilize the mercury. (82)

By merely coating it, it becomes sixty-four times as potent. If you add śulba (copper) to the silver, that silver becomes gold. (83)

That silver is considered superior, capable of granting merit, desire, wealth, and liberation. The oil of the niśācara fruit should be obtained according to the pātāla-tantra (underworld/subterranean systems). (84)

O Goddess, with that oil, contract the mercury firmly. Instantly, O Goddess, it becomes a mahā-rasa (great elixir) bound through the puṭa (heating) process. (85)

Using kaṭuka (bitter herbs) and ṭaṅkaṇa (borax), create a liṅga (mercury phallus). Through this, the process of saṅkoca-māraṇa (contraction and killing of the metal) must be performed, which is most miraculous. (86)

When mercury is placed in the juice of the niśācara seven times and heated by the sun, it becomes free of impurities and takes on the luster of gold. (87)

Then, take an equal amount of mercury, sprinkle it [with the mixture], and sow it. It will transmute one-tenth of the base metal; if done ten times, it reaches one hundred. (88)

One hundred transmutes a hundred thousand, and a thousand transmutes a crore (ten million). Grind one-tenth part with it, and make it gatadeha (devoid of its natural state/stable). (89)

At the tenth part, it gains the power of million-fold transmutation as previously stated. Having purified the gandhaka (sulfur) in that mercury, apply it again. (90)

By mere application of this [mixture], O beloved, it destroys the eighteen types of leprosy. It also destroys hemorrhoids, fistulas, spider poison, and diseases of the head. (91)

Take the leaves of the niśācara and grind them into a fine powder. Take ten pala (a unit of weight) of this powder and process it with bhūdhātrī (Phyllanthus emblica). (92)

Mix it with ghee and honey, and place it in a new earthen pot. Keep it buried in a heap of grain for three weeks, O Queen of Gods. (93)

By eating it, one becomes free of wrinkles and gray hair. By using it for half a month, this effect is realized, O beloved. (94)

By [the use of this medicine's] urine and feces, copper becomes gold. Through a month of application, even a snake becomes gold. (95)

The method for the powder of its bark has been described according to earlier rules. Now, I shall speak of another, very rare, method of binding mercury. (96)

That which is the "Mother of the Three Worlds" is the queen of all medicinal herbs. By mere contact with her, mercury remains in a bound state. (97)