Know all about Gneiss and Aplite properties here. All properties of rocks are important as they define the type of rock and its application. Gneiss belongs to Metamorphic Rocks while Aplite belongs to Igneous Rocks.Texture of Gneiss is Banded, Foliated, Platy whereas that of Aplite is Granular, Graphic. Gneiss appears Foliated and Aplite appears Veined or Pebbled. The luster of Gneiss is dull while that of Aplite is dull to pearly to subvitreous. Gneiss is available in black, brown, pink, red, white colors whereas Aplite is available in black, grey, orange, pink, white colors. The commercial uses of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums and that of Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones.