1. Abhraka is a mineral known by various names like Gouriteja. It has ores like biotite, muscovite and is classified based on color and reaction to heat.
2. It is purified through a process called nirvapana where it is heated and immersed in liquids like kanji 7 times.
3. Further processing involves mixing it with herbs and drying it to obtain dhanyabhraka, which is then given bhavana with herbs and subjected to puta or heating in marana to obtain abhraka bhasma.
4. Abhraka bhasma has uses as a rasayana and in treating various diseases when given in specific