Sunstone® Pearl, Exposed Aggregate Pool finishes are blends of specially selected quartz and other aggregates. SunStone Pearl provides the proven durability of natural pebble finishes as an alternative to traditional pool plaster and exposed aggregate finishes. SunStone Pearls of ever expanding choices of color fast pigments and textures offer the customer near limitless flexibility in poolscape design. SunStone® Pearl smooth pebble pool finish takes any pool to new heights of dazzling luminescence. This unique new finish combines smaller, delicate hand-selected pebble aggregates with reinforced white Portland cement. The result is a pool finish that feels as smooth as the surface of a precious pearl. SuinStone Pearl is easily installed, but is intended for use by professional applicators.