The Jewel Mine of Mercury

...cooked in gajapuṭas, it is killed calcined and becomes free of spots, without doubt. Grind the dhānyābhraka with the liquids of matsyākṣī, Tulsi, and the roots of the earth; with kokilākṣa, kumārī, śvetā, vyāghrī bulb, and punarnavā, grind for one day each. The kuñjara-method: grind seven puṭas, then again and again. Then, grind those, and in seven puṭas... thus, when it reaches the state of being free of spots, use it in all formulations. Dhānyābhraka, equal parts with cow urine, Tulsi liquid, vākucī Psoralea corylifolia, māraṇī calcining agent, and indigo; grind for a day and cook in a puṭa. Grind with the liquids again and again for a day, and cook in those puṭas. Sealing it twenty times, the mica becomes free of spots without a doubt. In the mūlatantra root-text, six processes are to be done; grind with kāñjika only. Grind it for half a day, and cook in a puṭa with heat. Thus, twenty times with liquids, afterwards, grind and in the puṭa... with four gajapuṭas in this way, it becomes free of spots and a conqueror of all diseases. Dhānyābhraka with arka-milk or with arka-root liquids; grind and grind, and cook in a puṭa; in this way, it is killed by seven [such processes] without a doubt. The dhānyābhraka [should be] in sour gruel and placed in the sun for a day and a quarter; then grind, make a ball, seal, and cook in gajapuṭas. In this way, in the water of triphalā, place and cook in a puṭa. In this way, place it in the middle of cow's milk and cook in a puṭa. Then, of the acid... with cow's milk, again and again, do the grinding in the sun and the puṭa. Then, by order, when twenty-one puṭas are reached, it is definitely killed. The process of killing for all... the triphalā-derived [formula] should be made, of sixteen palas... cow ghee, and of palas...