Anandakanda 1.10.60

1.10.60

<8. mahāvajreśvarī ghuṭikā>
śuddhaṃ svarṇaṃ vajrabhasma lohacūrṇābhrasatvakam /
etaccatuḥsamaṃ nāgaṃ mūṣāyāṃ cāndhritaṃ dhamet //

<8. Mahāvajreśvarī pill> / Pure gold, diamond ash, iron powder, and mica essence: / along with lead equal to these four combined, one should blast [them] sealed within a crucible.