Anandakanda 1.4.276

1.4.276

<navamaṃ hemabījam>
tīkṣṇārkanāgabhasmāni tāpyacūrṇaṃ samaṃ samam /
etaddrute vaheddhemni yāvaddaśaguṇaṃ bhavet //

<The ninth gold seed>
Ashes of steel, copper, and lead, and powder of pyrites in equal parts: / one should project this into melted gold until it becomes tenfold;