History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c18.s4.t5.16

v1.c18.s4.t5.16

For preparing Kupipakva Rasāyanas and/or Ṣaḍguṇa balijāraṇa heating through Sikatāyantra in a graded manner is advised to achieve optimum properties and benefits. If pure Mercury is not available its important mineral hingula was used for obtaining (extracting) pure Mercury to prepare mercurial compounds with sulphur or lavana by Mūrcchanā process.