All of our quartz products are made from pure natural quartz. Variation in the natural stone (quartz) color, size, shape, and shade are inherent unique characteristics to be expected with this product. This does not affect the product performance in anyway. Color blotches are intended and designed in many colors to enhance the natural quartz beauty. Quartz is virtually a maintenance free product; the non-porous surface will retain its luster for years without the need of waxing or sealing. This heat and scratch resistant surface is great for all homes and has many applications. All quartz is backed with at least a ten year warranty. Our available quartz suppliers are Cambria, Zodiaq, Silestone, Vicostone, and Ceaserstone.