Dark elegance defines these Dakota Stones matte onyx 15x30mm oval beads. Available in 8-inch strands, these beads feature soft black color with a sophisticated matte finish. These beads feature an elongated oval shape that would complement many other beads. This material has been rendered a uniform and permanent black color with a treatment of sugar and acid. This process has been used on the gemstone for thousands of years and is water safe. These beads are polished and then tumbled to achieve the matte finish. Mined in Brazil, India and Madagascar, onyx is said to enhance steadfastness and determination, setting one's mind to a task. Use these beads in long, layered looks with bright colors.