Know all about Mudstone and Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Mudstone belongs to Sedimentary Rocks while Porphyry belongs to Igneous Rocks.Texture of Mudstone is Clastic whereas that of Porphyry is Porphyritic. Mudstone appears Rough and Dull and Porphyry appears Dull. The luster of Mudstone and Porphyry is dull. Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors. The commercial uses of Mudstone are creating artwork, pottery and that of Porphyry are creating artwork, gemstone, jewelry.