Anandakanda 2.4.36

2.4.36

<tāmrabhasma (6)>
jīrṇaṃ tāmraṃ samādāya tatra caitānvinikṣipet /
vaṅgaṃ ghoṣaṃ gajaṃ tīkṣṇasāraṃ kāntaṃ ca ṣaṭ samān //

<Copper calx (6)> / Taking worn-out copper, one should throw these into it: / tin, bell-metal, lead, wrought iron, and loadstone—the six in equal parts.