[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) › 153\_159 # Rasadhyaya 153\_159 English (machine translation) 153\_159 - **Language:** English ### [153\_159](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.153_159) And in the previously mentioned four-legged iron mortar, having cast the mercury that has digested iron as well as / powder of iron-lustre amalgam in a sixty-fourth part, one should grind it with the previously mentioned blue vitriol sauce. / And one should kindle a gentle fire underneath. / When that powder of iron-lustre cast in the front is digested, \[one adds\] that same measure of iron\[-lustre amalgam\] again. / And thus, if the iron-lustre amalgam eight times \[the weight of\] mercury is digested, / then the mercury becomes yellow. / Then, for the redness of mercury, one should calcine-and-digest gold amalgam in the manner to be stated. / Thus ends the third \[process\], the calcination-digestion of iron-lustre amalgam for mercury that has digested iron. / And he himself will explain the nature of the amalgam below. - [Previous: 153\_158](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.153_158) - [Next: 154](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.154) --- Source: [https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.153_159](https://indike.org/pramana/in.med.rasa.dhatuvada.rasadhyaya~en-mt.153_159) · Pramāṇa