Albification

When the putrefaction of our seed has been thus completed, the fire may be increased till glorious colors appear, which the Sons of Art have called Cauda Pavonis, or the Peacock’s Tail. These colors come and go, as heat is administered approaching to the third degree, till all is of a beautiful green, and as it ripens assumes a perfect whiteness, which is the White Tincture, transmuting the inferior metals into silver, and very powerful as a medicine.

“On The Philosopher’s Stone” by Anonymous