Black Agate Crystal Tower (7) Black agate crystal tower is a sleek, polished stone with a deep, inky black and white hue. It is believed to provide grounding and protection, absorbing negative energy and promoting emotional stability. This crystal enhances courage, dispels fear, and fosters a sense of inner peace and balance. Approximate Measurements 80.56 grams 3.15” x 1.09” Please note natural stones are one of a kind and tend to have imperfections. Certian lighting may alter the crystal’s color display in photos. Smoke Free | Pet Free Environment