Rasarnava 12.187

12.187

śuddhaśulvaṃ tu saṃgṛhya mūṣāmadhye tu saṃsthitam
tripañcapalasaṃkhyaṃ tu karṣārdhasitaguñjayā //

Taking pure copper placed within a crucible,
in the quantity of fifteen palas, with half a karṣa of white guñjā;