NPT StoneScapes® Puerto Rico Blend .5 TROPICS BLUE MINI .5 KIT Tropics Blue Small Pebble Pool Finish .5 Parent Kit. StoneScapes Puerto Rico Blend Small Tropics Blue creates a dark blue water color and is comprised of modified white Portland cement which has been colored with dark blue pigment, black, gold and white natural quartz pebble aggregates and a specialty blend of colored quartz highlights and a specialty blend of small glass bead aggregates and abalone shell. The Puerto Rico Glass Bead Blend enhances the water color in every pool finish by bringing other dimensions of color and reflectivity that only colored glass bead can do. The beauty of this finish comes from the shade and color variations inherent in natural materials.