Know all about Troctolite and Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite and Porphyry belong to Igneous Rocks.Texture of Troctolite is Phaneritic whereas that of Porphyry is Porphyritic. Troctolite appears Veined and Shiny and Porphyry appears Dull. The luster of Troctolite is not available while that of Porphyry is dull. Troctolite 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 Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Porphyry are creating artwork, gemstone, jewelry.