Amethyst is the purple color variety of quartz. It is used to produce faceted stones, cabochons, beads, tumbled stones, and many other items for jewelry and ornamental use. Amethyst has a Mohs hardness of 7 and does not break by cleavage. It is a gem that is durable enough for use in rings, earrings, pendants, bracelets and other types of jewelry. For believers of its healing power, it's ideally used for Crown Chakra. 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.