Mini Pebble Blue Blend is a Quartz product for plaster finishes. Mixture of Equal Parts Blue, Teal, Capri. Mini Pebble Blue Blend from our North Carolina plant offers a closer source to East coast markets. The Mini Pebble material from the Estes North Carolina plant allows you to add the right amount of aggregate to your plaster Finish to get your desired finish. Estes Quartz is sold as a site mix product. The advantages of site mix allow you to customize finishes to customer specifications, avoid lot # matching issues with pre-mixed products, and offers savings over pre-mixed products.