While they differ in color, texture and crystalline structure, granites have three essential minerals in common – Feldspar (50% or greater), Quartz (25-40%) and Mica (3-10%). These minerals occur in different proportions, giving every slab its own color, texture and structural characteristics. Therefore, no two slabs of granite are alike and they offer a unique look and design in every piece. It is important to know seams are visible and depending on the color and grade of granite, it may stain. It is best to seal the product annually to help prevent any staining.