Black Obsidian

I got an aura reading before and black obsidian was recommended to protect my energy. I have some on hand and wear it often. I want to buy some more jewelry with it incorporated. Black Obsidian is a powerful stone for grounding and shielding against negativity. Can be naturally found wherever volcanic activity occurs.nearly five times sharper than refined steel it was often used for protection in a literal sense like for making arrowheads.