How to distinguish between granite and quartz stone as cabinet countertop materials?

Quartz stone is made of 94% quartz and 6% resin, with a hardness of 7 degrees. Granite is synthesized from resin and marble powder, so the hardness is generally 4-6 degrees. That is to say, the hardness of quartz stone is higher than that of granite, and it is more scratch-resistant and wear-resistant than it. Quartz stone can be reused because the material of quartz stone is evenly distributed. That is to say, after the surface is damaged by collision, the front and back sides can be simply polished to achieve the same effect as the original, which greatly reduces the cost. maintenance fees and costs. Granite cannot be reused because its front surface is specially made and cannot be used once it is damaged.