Know all about Porphyry and Anorthosite properties here. All properties of rocks are important as they define the type of rock and its application. Porphyry and Anorthosite belong to Igneous Rocks.Texture of Porphyry is Porphyritic whereas that of Anorthosite is Foliated, Glassy. Porphyry appears Dull and Anorthosite appears Layered, Banded, Veined and Shiny. The luster of Porphyry is dull while that of Anorthosite is pearly to subvitreous. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. The commercial uses of Porphyry are creating artwork, gemstone, jewelry and that of Anorthosite are creating artwork, curling.