Know all about Slate and Aplite properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Aplite belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Aplite is Granular, Graphic. Slate appears Dull and Aplite appears Veined or Pebbled. The luster of Slate is dull while that of Aplite is dull to pearly to subvitreous. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Aplite is available in black, grey, orange, pink, white colors. The commercial uses of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, writing slates and that of Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones.