The surface of quartz stone products is harder than steel. Generally speaking,you can put everything ,not worried about nick. 1)Product Name: Quartz Slab2)Color No.: KCC9350Quartz Surface Stone is 93% crushed quartz, one of nature's hardest minerals. The quartz is combined with high-quality,polymer,resins and pigments and then compacted under intence vibration,vacuum,and pressure into dense,non- ...