Know all about Theralite and Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Theralite and Porphyry belong to Igneous Rocks.Texture of Theralite is Phaneritic whereas that of Porphyry is Porphyritic. Theralite appears Veined and Shiny and Porphyry appears Dull. The luster of Theralite is waxy and dull while that of Porphyry is dull. Theralite is available in dark grey to black colors whereas Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors. The commercial uses of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones and that of Porphyry are creating artwork, gemstone, jewelry.