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