Rasahṛdayatantra (1728 manuscript)

...in the iron crucible. [6] Another method: with honey and oil-smeared egg, castor oil, and buttermilk, one should protect the egg. [7] The method: having placed two parts, and having restrained the mixture, one should crush it. [8] Another method: with sattva of gold, and twice the mākṣika, with the juice of kākumācī Solanum nigrum, one should cause digestion. [9] The six substances combined, with mica and vaṅga in a crucible, with the essence of gagana mica, the metals unite. [10] The abhraka-sattva mica essence transformation: with the seven seeds method, by the union of gagana-sattva, and with mākṣika, everything is necessarily united. [11] First, in the mouth of the kānta lodestone, the union of essences is done. [12]

Thus ends the twelfth chapter of the Rasarudra, "The Authority on the Extraction of Essence."

Now, the authority on the hybrid seed (saṅkara-bīja) is described. In honey, one makes the honey-path, a good day for the sweet sound. [1] Among the hybrid seeds, the "Great Seeds" are described: mākṣika, kānta-sattva, vaṅga, śulka, abhraka, mākṣika, abhraka, taṅka, vaṅga—these are the seeds. [2] The mākṣika, kānta, sattva, vaṅga, śulka, abhraka, mākṣika, tāra silver, kānta, abhraka, mākṣika, tāra, śulka, abhraka are the Great Seeds. [3] The mākṣika, tīkṣṇa steel, śulka, tīkṣṇa, śulka, abhraka are the Great Seeds. [4] The mākṣika, tāra, ruṇa-mākṣika a variety of pyrite, kānta, śulka, tāra, śulka, abhra, tāra, kāñcana gold, or vaṅga. [4] The kānta, rasasya, tāra, kānta, abhraka, tīkṣṇa, mākṣika, hema, abhraka, śulka, hema, abhraka, śulka, mākṣika. [5] There are sixty-four hybrid seeds. [6] The seed method is described: of all seed methods, the union as described... [7] The cause of penetration is described: if the thick essence does not penetrate, then the seeds do not melt. One should understand the fire-union here. [8]

Thus ends the thirteenth chapter of the Rasarudra, "The Teaching on Hybrid Seeds."

Now, the digestion of hybrid seeds is described. What is seed digestion? It is described: one should perform the seed digestion with the same essence. If done properly, it becomes gold. [1] The method of quenching the molten metal is described: on an earthen leaf, one should add a quarter part of sulfur. [2] One should place the small pellet in a small iron crucible and heat it. [3] Regarding that: with lavaṇa salt, ginger, and earth, one should perform the smelting. [4] ...The mākṣika usage in smoke-blocking results in a gold color, processed with copper and mercury. [10] With threefold sulfur, the mercury is processed. The pellets, dried in the shade, are prepared. [12] Having placed it in the crucible-pot, one should heat it firmly. The gold becomes fixed. [13]