Question: what is the weight difference between quartz and granite?
Answer: Because quartz and granite are minerals with natural variations, exact density varies from sample to sample, though overall quartz averages about 2.65 g/cc and granite comes in a little heavier at 2.7 to 2.8 g/cc. Countertops of comparable size of granite and quartz will weigh about the same, give or take a few pounds.