Anandakanda 1.9.60

1.9.60

<svarṇakāntarasāyanam>
pūrvavanmārayetsvarṇaṃ kāntaṃ svarṇadvibhāgakam /
dhātrīphalair dvisaptaiva bhāvayenmardayetkramāt //

<Gold and Loadstone Rejuvenation>
One should kill gold as before, and loadstone twice the portion of the gold;
one should macerate and grind [them] in succession twice seven times with āmalakī fruits.