Anandakanda 2.8.193

2.8.193

saptāhaṃ svedayettasminvaikrāntaṃ dravatāṃ vrajet /
āyuḥpradaśca balavarṇakaro'tivṛṣyaḥ prajñāpradaḥ sakaladoṣamadāpahārī /
dīptāgnikṛt pavisamānaguṇastarasvī vaikrāntakaḥ khalu vapurbalalohakārī //

One should steam it therein for a week; the vaikrānta goes to liquefaction.
Bestowing long life, producing strength and complexion, extremely aphrodisiac, imparting wisdom, destroying the pride of all defects,
kindling the digestive fire, possessing properties equal to diamond, efficacious, vaikrānta truly builds the body and strengthens base metals.