Know all about Gritstone and Granophyre properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone belongs to Sedimentary Rocks while Granophyre belongs to Igneous Rocks.Texture of Gritstone is Earthy whereas that of Granophyre is Granophyric. Gritstone appears Layered and Foliated and Granophyre appears Veined or Pebbled. The luster of Gritstone is dull while that of Granophyre is dull to grainy with sporadic parts pearly and vitreous. Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Granophyre is available in black, grey, orange, pink, white 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 Granophyre are curling, gemstone, laboratory bench tops, tombstones.