Put a splash of gemstone color into your designs with the blue and green quartz 6mm round 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 feature a versatile size and would add a nice accent of color to bracelets, necklaces and even earrings.