Black obsidian is known by several names, such as Royal Agate, Xaga, Glassy Lava, Volcanic glass and Glass Agate. This stone is born out of rapid cooling lava from a volcano. Due to its origins, it is believed to have the elements of fire, water, and earth. It's been around since prehistoric times and was used to make arrowheads, spear points, and other cutting tools in earlier times. Care Instructions Detergents and lotions can damage the finishing and colour of the stones / crystals. * Clean with soft 100% cotton. Disclaimer: The information provided is intended as a reference of the metaphysical and healing energies of the crystals. Their healing powers are not established and cannot be guaranteed. Crystals should never be used as a substitute for conventional medical or psychological treatment.