Know all about Harzburgite and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Harzburgite belongs to Igneous Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Harzburgite is Phaneritic whereas that of Gritstone is Earthy. Harzburgite appears Rough and Shiny and Gritstone appears Layered and Foliated. The luster of Harzburgite is shiny while that of Gritstone is dull. Harzburgite is available in dark greenish - grey colors whereas Gritstone is 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 Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that 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.