Anandakanda 1.23.78

1.23.78

pācayedbhasmatāṃ yāti śubhraḥ syātsarvarogahā /
<caturdaśaḥ prakāraḥ>
śuddhasūtād ardhabhāgaṃ śuddhaṃ gandhaṃ vimardayet //

He should cook it; it attains calx-state, becomes white, and destroys all diseases.
<The Fourteenth Method>
One should grind pure sulphur equal to half the quantity of pure quicksilver,