Industrial Uses Of Quartz And Quartzite

Quartz is a crystalline rock and is found in other rocks such as granite and gneiss.2.Unlike quartz, marble has high architectural value.3.Quartz has a hardness of 7 on mohs scale whereas marble comes with a hardness of 3 to 4 on the scale.4.Quartz comes in different colors like white, opaque, rose, smoky yellow, violet and brown.