Know all about Porphyry and Hornfels properties here. All properties of rocks are important as they define the type of rock and its application. Porphyry belongs to Igneous Rocks while Hornfels belongs to Metamorphic Rocks.Texture of Porphyry is Porphyritic whereas that of Hornfels is Granular, Platy. Porphyry appears Dull and Hornfels appears Dull. The luster of Porphyry is dull while that of Hornfels is shiny. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas Hornfels is available in brown, dark greenish - grey, green, reddish brown colors. The commercial uses of Porphyry are creating artwork, gemstone, jewelry and that of Hornfels are cemetery markers, commemorative tablets, creating artwork.