Know all about Porphyry and Norite properties here. All properties of rocks are important as they define the type of rock and its application. Porphyry and Norite belong to Igneous Rocks.Texture of Porphyry is Porphyritic whereas that of Norite is Phaneritic. Porphyry appears Dull and Norite appears Veined and Shiny. The luster of Porphyry is dull while that of Norite is not available. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas Norite is available in dark grey to black colors. The commercial uses of Porphyry are creating artwork, gemstone, jewelry and that of Norite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.