Know all about Charnockite and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite belongs to Igneous Rocks while Siltstone belongs to Sedimentary Rocks.Texture of Charnockite is Granular whereas that of Siltstone is Clastic. Charnockite appears Veined or Pebbled and Siltstone appears Rough. The luster of Charnockite is not available while that of Siltstone is dull. Charnockite is available in black, grey, orange, pink, white colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Charnockite are curling, gemstone, laboratory bench tops, tombstones and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.