Herderite is a very energetic mineral from Brazil and South America.  I find it helpful to stimulate or energize the third eye, opens one to psychic abilities.  Allows one to feel safe while exploring those outer realms.  Activates the passion within so we can truly discover our life's purpose, the purpose that makes us happy and helpful to others.  Encourages leadership.  Wonderful in group settings, brings people together to find common ground and cooperation.  Very rare.