Know all about Charnockite and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite belongs to Igneous Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Charnockite is Granular whereas that of Gritstone is Earthy. Charnockite appears Veined or Pebbled and Gritstone appears Layered and Foliated. The luster of Charnockite is not available while that of Gritstone is dull. Charnockite is available in black, grey, orange, pink, white 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 Charnockite are curling, gemstone, laboratory bench tops, tombstones 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.