Know all about Porphyry and Greenschist properties here. All properties of rocks are important as they define the type of rock and its application. Porphyry belongs to Igneous Rocks while Greenschist belongs to Metamorphic Rocks.Texture of Porphyry is Porphyritic whereas that of Greenschist is Foliated, Platy. Porphyry appears Dull and Greenschist appears Layered and Shiny. The luster of Porphyry is dull while that of Greenschist is shiny. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas Greenschist is available in dark greenish - grey, green colors. The commercial uses of Porphyry are creating artwork, gemstone, jewelry and that of Greenschist are blackboards, manufacture of tools, writing slates.