Know all about Shale and Quartzite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Quartzite belongs to Metamorphic Rocks.Texture of Shale is Clastic, Splintery whereas that of Quartzite is Foliated, Granular. Shale appears Muddy and Quartzite appears Lustrous. The luster of Shale is dull while that of Quartzite is vitreous. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors. The commercial uses of Shale are creating artwork, pottery and that of Quartzite are an oil and gas reservoir, as armour rock for sea walls, cemetery markers, commemorative tablets, in aquifers, laboratory bench tops, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums.