Know all about Diorite and Quartzite properties here. All properties of rocks are important as they define the type of rock and its application. Diorite belongs to Igneous Rocks while Quartzite belongs to Metamorphic Rocks.Texture of Diorite is Phaneritic whereas that of Quartzite is Foliated, Granular. Diorite appears Shiny and Quartzite appears Lustrous. The luster of Diorite is shiny while that of Quartzite is vitreous. Diorite is available in black, brown, light to dark grey, white colors whereas Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors. The commercial uses of Diorite are creating artwork, curling 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.