[Pramāṇa](https://indike.org/pramana/) › [Indian literature](https://indike.org/pramana/in) › [Medicine](https://indike.org/pramana/in.med) › [Alchemy and Iatrochemistry](https://indike.org/pramana/in.med.rasa) › [Metallurgical alchemy and transmutation into gold](https://indike.org/pramana/in.med.rasa.dhatuvada) › [Rasādhyāya](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya) › [English (machine translation)](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt) › 150\_154 # Rasadhyaya 150\_154 English (machine translation) 150\_154 - **Language:** English ### [150\_154](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.150_154) An iron mortar in which four feet stand firmly like a small bench is called 'four-legged'. .. 1.138-150:1 .. In that iron mortar, having placed the mercury that has swallowed mica, along with lodestone iron powder measuring one sixty-fourth of the mercury, one should grind it very gently with a pestle together with the viḍa. .. 1.138-150:2 .. And underneath, one should kindle a soft fire. .. 1.138-150:3 .. For one doing so, if that one sixty-fourth part of lodestone iron powder becomes digested, then again having thrown in a sixty-fourth part of lodestone iron powder, it must be ground with blue vitriol viḍa. .. 1.138-150:4 .. And a fire must be kindled underneath. .. 1.138-150:5 .. Thus, when the previously added iron powder is digested, iron powder must be repeatedly added in sixty-fourth parts for as long .. 1.138-150:6 .. as iron powder eight times the mercury is digested. .. 1.138-150:7 .. For this reason, bound by the astringency of the iron powder, the mercury becomes wheat-colored. .. 1.138-150:8 .. Likewise, it endures colorations. .. 1.138-150:9 .. Then, colorations of amalgams and the like for shining are digested. .. 1.138-150:10 .. And here, if lodestone iron is not obtained, then wrought iron and steel \[are used\]. .. 1.138-150:11 .. Likewise, the blue vitriol that is obtained is rubbed with sour gruel and added like sandal-paste. .. 1.138-150:12 .. This is called 'blue vitriol viḍa'. .. 1.138-150:13 .. Further on also, everywhere this alone should be understood by the term 'blue vitriol viḍa'. .. 1.138-150:14 .. This is the second \[procedure\], the digestion of iron for mercury that has swallowed mica. .. 1.138-150:15 .. - [Previous: 150\_153](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.150_153) - [Next: 151](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.151) --- Source: [https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.150_154](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.150_154) · Pramāṇa