Know all about Anorthosite and Quartzite properties here. All properties of rocks are important as they define the type of rock and its application. Anorthosite belongs to Igneous Rocks while Quartzite belongs to Metamorphic Rocks.Texture of Anorthosite is Foliated, Glassy whereas that of Quartzite is Foliated, Granular. Anorthosite appears Layered, Banded, Veined and Shiny and Quartzite appears Lustrous. The luster of Anorthosite is pearly to subvitreous while that of Quartzite is vitreous. Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors whereas Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors. The commercial uses of Anorthosite 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.