Quartz is a man-made material. Quartz slab manufacturing starts by taking the strongest part of granite, natural quartz. The natural quartz is then blended with other raw materials and polymer resins. Quartz is often referred to as “engineered stone” or “re-engineered stone”, this is because the manufacturing process mixes approximately 95% ground natural quartz with about 5% polymer resins. The combination of strong natural quartz gives quartz countertops great durability while the resins help to make the product non-porous (unlike natural stones). There are a number of manufactures, colors, and brands of quartz slabs. Each slab is created using the same general process, however brands will differentiate themselves with their selectiveness in raw materials, quality control, country of origin, and stylized colors. The brand, along with the popularity of a color, and the complexity of its design will influence the raw slab price from the manufacturer.