Minerals and Metals in Ancient India v2.c44.s6.t2.12

v2.c44.s6.t2.12

*Rasakalpa*, which is a part and parcel of *Rudrayamala Tantra*, also belonged to the thirteenth century AD. The author has restricted his treatise solely to a description of the metals, minerals, and the process of ‘killing’ them with the agency of various apparatus.