Anandakanda 2.1.176

2.1.176

mardyaṃ mardyaṃ puṭe pacyātsaptadhā mriyate dhruvam /
<daśamaḥ prakāraḥ>
dhānyābhrakaṃ tuṣāmlāntarātape sthāpayeddinam //

Should be repeatedly ground and cooked in a calcination seven times; it is definitely killed. / <Tenth method>
One should place prepared mica inside husked grain fermented gruel (tuṣāmla) in the sun for a day.