text: Rasaratna Samuccaya ( Devanagari: रसरत्न समुच्चय) is an Indian Sanskrit treatise on alchemy. The text is dated between 13th to 16th century CE.
  The text contains detailed descriptions of various complex metallurgical processes, 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.