[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) › Rasopanishad # Rasopanishad (Rasopaniṣad) रसोपनिषद् transmutation of base metals into gold and silver by processed mercury, rasāyana and dehasiddhi - **Language:** Sanskrit - **Author:** [Umānātha](https://indike.org/pramana/person/umanatha) - **Text:** not yet digitised (catalogue entry) --- Source: [https://indike.org/pramana/in.med.rasa.dhatuvada.rasopanisad](https://indike.org/pramana/in.med.rasa.dhatuvada.rasopanisad) · Pramāṇa