Rasahṛdayatantra (1728 manuscript)

1.7-22

One should perform the viḍa alchemical mixture with viḍaṅga, tuttha, mercury, viṣa poison, kukkuta, kānta-cumbaka magnetite, gairika, and ṭankaṇa. Lead, rudhirākṣa blood-red seeds, and mercury should be doubled. [43]

The method of jāraṇa absorption:
With two parts of the paste, apply the bhavanā maceration seven times. Then, cook the calcined paste in an īḍakā earthen vessel. [44]

Tīkā: Give seven bhavanās macerations with the sāraṇa paste, then cook the calcined paste by fire in a vessel. [44]

The sāraṇā infusion method:
As long as the lead becomes tranquil, one should carefully remove the defects. [45]

Tīkā: Having made a paste with the previous compounds, remove the lead until it is no longer lead. [45]

This is the great rasarāja King of Mercury that gives all desired fruits. [46]

Tīkā: This refers to the ability to travel through the sky and enjoy great wealth. [46]

Another method for the paste:
Abhraka mica, mākṣika, and gold mixed with lead, then combined with mercury and purified herbs. [47]

Tīkā: Gold, mākṣika, and mica are mixed with lead. Combine this with mercury and perform the purification with herbs. [47]

The method for nāgendra-māṭiṭī lead-gold transmutation:
Six-fold sulfur, tālaka, and śilā added to lead. This is the māṭiṭī transmuting agent for silver and gold, in a sixteenth-part ratio. [48]

Tīkā: As mentioned, use six-fold sulfur, tālaka, and śilā. In the transmutation of silver and gold, it is a sixteenth-part. [48]

The method for nāga-māraṇa killing/calcination of lead:
Mākṣika, white śilā, and lead should be heated together with jambīra lemon juice and saindhava salt in a clay vessel. [49]

Tīkā: Mākṣika and śilā orpiment are added to the lead. This mixture, along with jambīra juice and salt, is heated in a clay vessel. [49]

The nāga-tāra lead-silver and gold method:
Grind the powder, add tīkṣṇa iron in equal parts, mix them, and cook them with the juice of nāga. [51]

Tīkā: With sulfur, make it equal parts. Cook with nārī-kṣīra human mother's milk for one day. [52]

The hema-lū-ṭī gold-transmutation method:
Two parts of the essence with milk and nārī-kṣīra mother's milk... [53]

Tīkā: Use mother's milk to create the transmutation into gold. [54]

Again, the nāga lead method:
Purified with śilā and mercury, one-fourth part, heated in a vessel, should be made firm. [55]

Tīkā: Using two parts of śilā and one-fourth part of mercury, perform the heating in a vessel as prescribed. [55]

The nirguṇḍī Vitex process:
Heated and purified with śilā, then repeatedly ground and heated until it becomes niruttha non-arising/fixed. [57]

Tīkā: When the lead powder becomes niruttha, it attains the color of gold. [57]

Tāpya gold pyrite method:
Place the tāpya powder inside the copper crucible and heat it. [58]

Tīkā: Place the pyrite powder in a copper crucible and heat it according to the method. [58]

It concludes:
When it becomes equal to gold, the leaves made of this transmuted metal are like gold. [59]