Know all about Aplite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Aplite belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks.Texture of Aplite is Granular, Graphic whereas that of Lignite is Amorphous, Glassy. Aplite appears Veined or Pebbled and Lignite appears Veined or Pebbled. The luster of Aplite is dull to pearly to subvitreous while that of Lignite is dull to vitreous to submetallic. Aplite is available in black, grey, orange, pink, white colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones and that of Lignite are electricity generation.