Know all about Aplite and Oil shale properties here. All properties of rocks are important as they define the type of rock and its application. Aplite belongs to Igneous Rocks while Oil shale belongs to Sedimentary Rocks.Texture of Aplite is Granular, Graphic whereas that of Oil shale is Splintery. Aplite appears Veined or Pebbled and Oil shale appears Muddy. The luster of Aplite is dull to pearly to subvitreous while that of Oil shale is dull. Aplite is available in black, grey, orange, pink, white colors whereas Oil shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones and that of Oil shale are an oil and gas reservoir.