4 mm Black Onyx Chakra Gemstone Bracelet with handcrafted Sterling Silver findings and the seven Chakra stones which include amethyst, lapis lazuli, aquamarine, malachite, tigers eye, carnelian and hematite. Black Onyx is a powerful protection stone. It absorbs and transforms negative energy and helps to prevent the drain of personal energy. It also aids in the development of emotional and physical strength and stamina, especially during times of confusion or grief. Black Onyx balances the yin and yang energies within the body.