NPT StoneScapes® Regular Pebbles AQUA BLUE REGULAR 1/2 Aqua Blue Pool Finish .5 Parent Kit. StoneScapes Regular Aqua Blue pebble aggregate pool finish creates medium blue water color and is comprised of aqua blue pigmented white Portland cement and features natural black, gold and white quartz pebble aggregates. The beauty of this finish comes from the shade and color variations inherent in natural materials.