Abhraka Panchamruta Rasa – Benefits, Usage, Indications and Dosage Introduction Abhraka Panchamruta Rasa is an ayurvedic formulation. This formulation is formulated from the mixture of mineral and herbs. Ingredients One of the main ingredient of this formulation is abhraka bhsama. This bhasma is mainly prepared from black mica or biotite. This bhasma is also known with other names such as mica ash, calcined mica, oxidized mica, abhrak calx or calcined biotite. Other Ingredients:- Abhraka Panchamruta Rasa contains Rasa (purified Mercury),