NPT QuartzScapes® Caribbean QUARTZSCAPES GRENADINE GRAY Grenadine Gray Pool Finish Parent Kit - Finish your pool with distinction! QuartzScapes Caribbean Series Grenadine Gray quartz pool finish creates blue gray water color and is comprised of blue/gray pigmented white Portland cement, natural quartz aggregate and Cobalt Blue and Black T-Grade colored quartz highlights. Because natural quartz is ten times harder and more durable than marble, QuartzScapes is perfect for both commercial and residential installations.