Rasaratna Samuccaya ( Devanagari: रसरत्न समुच्चय) is an Indian Sanskrit treatise on alchemy.
The text is dated between 13th[1] to 16th century CE.
[2] The text contains detailed descriptions of various complex metallurgical processes,[3][4] as well as descriptions of how to set up and equip a laboratory and other topics concerning Indian alchemy.
It is a work that synthesises the writings and opinions of several earlier authors and presents a coherent account of medieval Indian alchemy.
Among the diverse scientific content of this text is:[5]