Add the beauty of an ocean landscape to your designs with the blue and green quartz 10x20mm double drill beads from Dakota Stones. Available by the strand, these beads display oceanic colors that vary from ocean blue and sea green to pale foamy green and brown. These beads are perfect for beach-inspired jewelry. Quartz is the most common mineral found on the surface of the earth. It is said to be a stone of power and that it can enhance thoughts. These beads are rectangular in shape and feature two stringing holes drilled through the sides. They would be excellent for use in watchbands.