Pi Stone - Sodalite

Flat round polished piece of sodalite stone with a hole in the center which can be worn on a cord around the neck as a pendant. Sometimes called a gemstone donut or bagel, it is also used in the Munay Ki Rite ceremony with which some who study a particular type of shamanism are gifted during a ceremony. 

Sodalite provides for the ability to arrive at logical conclusions via rational mental processes. It eliminates confusion and equalizes and stimulates the intellect to be compatible with each situation.