Black Obsidian Small tumble stone

These are small Black Obsidian tumbles these come from Mexico 
Size:
Black obsidian is a powerful psychic protection stone and helps to cleanse the auric field. It has properties that shield against negative energies. The energy of black obsidian is said to encourage prophecy. Its a fantastic stone to essential stress and chaos from everyday life. With black obsidian being so grounding it is connected to the root chakra helping to tether your energy to earth.