Quartz is a man made stone. It is a crystallized silicon dioxide (SiO2), which, when combined with stain resistant polymers, produces a hard wearing, non-porous material. The primary advantage of this property is that, unlike natural stone products quartz does not require a sealant that must be periodically reapplied. The colour is also consistent throughout.
Quartz can also have added Microban, an antibacterial application which is built into the stone during the manufacturing process. Due to these attributes, quartz can be resistant to scratches, abrasion, and everyday stains like tea, coffee and cooking oils.