Marble is a rock on account of metamorphism of sedimentary carbonate rocks, maximum normally limestone or dolomite rock. 

Granite is a natural stone that comes directly from stone quarries and is then cut into thin slabs, polished, and fabricated into countertops.

 Quartzite is a very hard metamorphic rock that originated as sandstone. Through a process of high heating and pressurization sandstone is transformed into Quartzite, an extremely strong and durable natural stone.

Quartz countertops are engineered stone products that may contain a large percentage of natural quartz but may also include other minerals.