Know all about Troctolite and Shale properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite belongs to Igneous Rocks while Shale belongs to Sedimentary Rocks.Texture of Troctolite is Phaneritic whereas that of Shale is Clastic, Splintery. Troctolite appears Veined and Shiny and Shale appears Muddy. The luster of Troctolite is not available while that of Shale is dull. Troctolite is available in dark grey to black colors whereas Shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Shale are creating artwork, pottery.