Know all about Shale and Adamellite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Adamellite belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Adamellite is Porphyritic. Shale appears Muddy and Adamellite appears Veined or Pebbled. The luster of Shale is dull while that of Adamellite is dull to grainy with sporadic parts pearly and vitreous. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Adamellite is available in black, grey, orange, pink, white colors. The commercial uses of Shale are creating artwork, pottery and that of Adamellite are curling, gemstone, laboratory bench tops, tombstones.