We are offering limestone is a sedimentary rock composed of the mineral calcite (calcium carbonate). The primary source of this calcite is usually marine organisms. These organisms secrete shells that settle out of the water column and are deposited on ocean floors as pelagic ooze.
Quartzite is a firm and compact stone composed of grains of quartz. Quartzite is a rock formed from the metamorphism of quartz stone. These are fireproof and non-slippery in nature.