Know all about Gritstone and Diorite properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone belongs to Sedimentary Rocks while Diorite belongs to Igneous Rocks.Texture of Gritstone is Earthy whereas that of Diorite is Phaneritic. Gritstone appears Layered and Foliated and Diorite appears Shiny. The luster of Gritstone is dull while that of Diorite is shiny. Gritstone and Diorite are available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones and that of Diorite are creating artwork, curling.