Quartz is a manufactured countertop material. It is the most durable countertop material, making it the least porous and most resistant to scratches or bacterial growth. The manufacturing process makes the countertop one uniform color. This makes matching each slab very easy. While it maintains the durability of granite, it lacks that natural variety that comes with granite. In addition, quartz countertops can be quite heavy. We recommend that quartz countertops be professionally-installed.