Make your designs dramatic and elegant with the Dakota Stones sardonyx 15x30mm oval beads. Available in 8-inch strands, these beads feature white stripes against a black background. These beads feature an elongated oval shape. Sardonyx is an onyx that is characterized by parallel lines of sard and different colored minerals. It is a distinct and dramatically banded variety of chalcedony composed of quartz layers. Sardonyx is believed to improve memory and increase one's analytical talents. Sardonyx is mined all over the globe and is also known as tuxedo agate. Add these beads to a long necklace for touches of sophistication.
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