NPT QuartzScapes® Regular Series QUARTZSCAPES ONYX Anvil Pool Finish Parent Kit - Finish your pool with distinction! QuartzScapes Regular Series Anvil creates deep dark green water color and is comprised of black pigmented white Portland cement, natural quartz aggregate, 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.