Know all about Banded iron formation and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Banded iron formation and Argillite belong to Sedimentary Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Argillite is Clastic, Polished. Banded iron formation appears Layered, Banded, Veined and Shiny and Argillite appears Rough and Dull. The luster of Banded iron formation is earthy while that of Argillite is waxy and dull. Banded iron formation is available in red, reddish brown colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Argillite are fire resistant, used to manufracture paperweights and bookends.