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