a kind of nodular Obsidian in perlite matrix. Excellent psychic protection. Aides in seeing the clear truth of a situation. Helps process grief and releases from trauma. A soft & entle vibration  allow one to come to a state of self-realization.  it is said that grieving Apache women, who lost their loved ones in a raid, cried for a month and their tears fell to the ground, becoming a form of Black Obsidian
1.5 inch