Know all about Troctolite and Aplite properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite and Aplite belong to Igneous Rocks.Texture of Troctolite is Phaneritic whereas that of Aplite is Granular, Graphic. Troctolite appears Veined and Shiny and Aplite appears Veined or Pebbled. The luster of Troctolite is not available while that of Aplite is dull to pearly to subvitreous. Troctolite is available in dark grey to black colors whereas Aplite is available in black, grey, orange, pink, white colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones.