Know all about Marl and Charnockite properties here. All properties of rocks are important as they define the type of rock and its application. Marl belongs to Sedimentary Rocks while Charnockite belongs to Igneous Rocks.Texture of Marl is Earthy whereas that of Charnockite is Granular. Marl appears Rough and Dull and Charnockite appears Veined or Pebbled. The luster of Marl is dull while that of Charnockite is not available. Marl is available in beige, brown, green, grey, white colors whereas Charnockite is available in black, grey, orange, pink, white colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Charnockite are curling, gemstone, laboratory bench tops, tombstones.