... ,grind and polish.93% content of quartz stone ensures its hard and compact structure with excellent ... compression, scratch, heat, corrosion and penetration etc. Quartz Stone is widely used for kitchen countertops, quartz tiles,floor ... more than 50 are availableCharacteristic of Quartz surface stone:1.Super hardness, resistant to scratch and abrasion2 ... 3Ira=0.07Iy=0.14 Quartz Stone,Natural stone tile