NPT StoneScapes® Regular Pebbles SALT & PEPPER REGULAR Salt & Pepper Parent Kit. StoneScapes Touch of Glass Salt N Pepper creates light blue water color and is comprised of modified white Portland cement, natural black and white quartz pebble aggregates, with Black glass bead accents. The glass bead accents enhance the water color by adding additional pops of color and contrast that only colored glass bead can do. The beauty of this finish comes from the shade and color variations inherent in natural materials.