Questions related to materials used for stone fabrication and installation.

What is the difference between quartz and quartzite?

Quartzite is a natural stone, whereas quartz is engineered by taking natural-quartz crystals, grinding them into dust, and fusing the aggregate with resin binders under intense heat and pressure to form a solid slab. Pigments are added during the process to impart color. 

What is the hardest natural countertop stone?

Granite and quartzite are very hard, but quartzite has a very slight edge according to Mohs scale of hardness (with one being the softest and ten being the hardest). It measures around seven, whereas granite measures around 6 to 6.5.