Part 3 - Purification of Mica

First Process.

Mica is purified, if it is heated strongly, (preferably by means of a bellows) for seven times and immersed each time, either in (1) kanji, or (2) cow’s urine; then heated for seven times and immersed each time in the decoction of triphala; and then again, heated for seven times, and immersed in milk with especial care. It is then to be reduced to what is called, “Dhanya-abhra”, and incinerated in the prescribed manner.

Second process.

Mica may also be purified, if it is heated and then immersed, while still hot, into a decoction of hog plums. It is next to be rubbed with two hands and dried. Thus reduced to powder, it becomes finer and better than Dhanya-abhra. (It is next to be incinerated exactly in the same way as Dhanya-abhra).

Mica is purified, if it is heated strongly for seven times, and immersed each time in the juice of nirgundi leaves. Mica, thus purified, is to be reduced to Dhanya-abhra, and incinerated,

Fourth process.

Black mica is to be heated and immersed in milk. Its layers are then to be separated from one another and subjected to bhavana with the juice of tanduliyaka and a sour non-metallic liquid. Mica is thus purified.