Showcase the beauty of natural color in your designs with the Dakota Stones turritella 10x20mm double drill beads. Available by the strand, these beads feature muddy brown color with swirling white, gray and cream inclusions. These inclusions are actually embedded sea creatures and snail markings in the stone. Each bead tells a unique story of the sea. Turritella agate is said to be a stone of strength and protection. These gemstone beads feature a rectangular shape and two stringing holes drilled through the sides, making them perfect for use in watch bands.