Anandakanda 1.4.265

1.4.265

<ṣaṣṭhaṃ hemabījam>
taddhemni dviguṇaṃ tāpyaṃ pūrṇitaṃ taddhameddṛḍham /
taccūrṇayed dvitripuṭaiḥ pañcabhir māritaṃ bhavet //

<The sixth gold seed>
Twice as much pyrites as gold: [after] pulverizing, one should blow strongly upon it. / One should powder that; through two or three puṭas, [or] through five, it becomes killed.