Mold & Granite Countertops

We think of granite as impervious to everything, and indeed, it is both hard and strong. Granite is a major part of the continental crust and is composed primarily of quartz, feldspar, mica, and horneblend. Chemically, it is approximately 72% SiO2 and 14% Al2O3 with other compounds comprising less than 5% each. Depending on the […]