Star Quartz Star Glass Translucent Grout. StarGlass Grout is a ground-breaking, one of a kind product, specially designed for use with glass and metal tile. 3 x 6StarGlass combines a reflective, round glass bead aggregate with our patented Urethane Grout Technology binder to create a translucent grout that will bring elegance and beauty to your glass or metal tile installation. There are 15 stunning colors from which to choose, ranging from pristine Diamond to shimmering Copper. Available in a 9 lb and 18 lb buckets.