Rasaprakāśasudhākara | (Chapter 3.)

Grind the two together original: "praharayugmamitam" - two praharas, or approximately six hours of grinding on a stone slab with sunlight. Place them into a beautiful glass vessel and treat them with the sikatāyantra sand-bath apparatus for three days. (11)
Oh excellent physician, apply fire beneath it. It will become reddish, like the color of a lotus. This mercury, called udayabhāskara the rising sun, is in itself a destroyer of diseases. (12)
If consumed regularly with honey from Magadha original: "Magadhajamadhunā" - honey from the Magadha region, prized in Ayurvedic texts in a dose of three guñjīkā seeds of Abrus precatorius, used as a unit of measurement, it bestows the enjoyment of love. Even an old man becomes youthful in sexual vigor. (13)
It removes disease, provides strength, and restores complexion. It resolves the effects of past karmas original: "karmavipākarajogahā" - implying the removal of negative karmic residues manifesting as chronic illness. I have revealed this entire mercury-ash preparation to the noble twice-born original: "dvijavareṇa" - referring to a Brahmin or learned scholar. (14)

The mercury should be purified by an expert in chemistry, and the sulfur original: "gandhaka" must be freed from various impurities. Place it into a new, clear iron crucible; let the essence-ash original: "amalasārarajaḥ" - pure mineral ash be released. (15)
When placed over a very low fire, it melts by itself. Afterward, place the mercury into it. Using a clean iron spoon, stir it for the duration of three prahara approximately nine hours. (16)
Then, place it into a glass vessel and cook it using the excellent sikatāyantra sand-bath apparatus. By applying fire beneath it for twenty yāma sixty hours, it becomes a red, best-quality ash. (17)
Consumed by a person who has lost their strength, it is a potent aphrodisiac and always provides comfort. It destroys wrinkles and gray hair, and bestows a life of a hundred autumns free from illness. (18)

Take one part of excellent, purified lead and mix it with four parts of mercury original: "haraja" - a synonym for mercury. Grind them continuously on a stone slab, and add an equal portion of sulfur original: "balivasā" - literally 'fat of the strong', referring to sulfur, then cook it. (19)
Grind it well for one day in the juice of kanyakā aloe vera, and dry it thoroughly in the sun. Then, place the black powder kajjali the initial black sulfide of mercury of the excellent mercury into a beautiful glass vessel. (20)

Footnotes for page 30: 1. Place purified lead in a crucible, melt it on a fire, and once molten, add four parts mercury and remove. Afterward, grind it and prepare the black powder with an equal part of sulfur. The remaining procedure is the same as for gold. 2. "Ainakare" means in the heat of the sun.

By applying fire beneath it for two days, it becomes reddish, like the color of a lotus. It destroys all diseases, stimulates the digestive fire, provides strength, and grants extreme radiance. (21)
It destroys eye diseases and creates excitement in all lovers. This mercury, when mixed with clean lead, truly destroys the negative effects of past karmas. (22)

Construct a smooth crucible from soft clay, equipped with a small pit on the upper side. Place ten śāṇa a unit of weight, approx. 3 grams of excellent mercury there, and place a peacock feather original: "śukapiccha" - likely referring to the color or a specific preparation style on top. (23)
Fill the pit completely with juice extracted from ripe lemons. Seal it with an excellent earthen cover and seal it thoroughly with clay. (24)
Afterward, place the container inside a kaukkuṭapuṭa a heat treatment method using the equivalent of the heat of a hen according to the prescribed method. In this way, the expert physician performs the purification and incineration of sulfur. (25)
It becomes a tonic for the body, a builder of metal original: "lohakṛt" - implying it has the power to transform or strengthen the bodily humors, and it is the highest means for all accomplishments. When it is digested a hundred times over, the excellent mercury becomes a maker of gold. (26)

Grind the royal mercury, equal to a peacock feather in luster, on a clean stone slab. Prepare a high-quality tablet parpaṭī a thin, flaked medicinal preparation and wrap it into a bundle poṭṭalī a linen pouch. (27)
Smear it with the juice of nāgara ginger and dry it in the sun. Then, place it into a pit in the earth seven times with the juice of gold-leaf original: "kanakapatra" - likely Gold-leaf or a plant associated with it. (28)
The pit in the earth should be twelve fingers deep and very narrow. Fill half of it with sand, then place the bundle there. (29)
Fill the remainder with sand and apply a puṭa a heat treatment using cow-dung cakes. Apply fire for twenty yāma sixty hours. By this, the great mercury bundle is produced. (30)
Thus, I have described the mercury bundle, which is strength-giving, easy to prepare, and grants successful results.

The sulfur is equal to the purified mercury; then, grind them well together on a stone slab. (31)

Footnotes for page 31: 1. "Galitanimbukaphalodbhava" means the juice of the lemon fruit. 2. A variant reading is "dṛḍhatarāmupakalpaya" (make it very firm). 3. "Nāgavallī" means betel leaf juice.