Know all about Banded iron formation and Aplite properties here. All properties of rocks are important as they define the type of rock and its application. Banded iron formation belongs to Sedimentary Rocks while Aplite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Aplite is Granular, Graphic. Banded iron formation appears Layered, Banded, Veined and Shiny and Aplite appears Veined or Pebbled. The luster of Banded iron formation is earthy while that of Aplite is dull to pearly to subvitreous. Banded iron formation is available in red, reddish brown colors whereas Aplite is available in black, grey, orange, pink, white colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones.