Rasamanjari 3.24

3.24

<vajraśodhanam (2)>
vyāghrīkandagataṃ vajraṃ mṛdā liptaṃ puṭe pacet /
ahorātrātsamuddhṛtya hayamūtreṇa secayet /
vajrīkṣīreṇa vā siñcet kuliśaṃ vimalaṃ bhavet //

<Purification of diamond (2)>
One should cook diamond placed inside a vyāghrī tuber, smeared with clay, in an incineration pit; / having removed it after a day and a night, one should sprinkle it with horse urine, / or sprinkle it with milk-hedge latex; the diamond will become pure.