Know all about Banded iron formation and Theralite 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 Theralite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Theralite is Phaneritic. Banded iron formation appears Layered, Banded, Veined and Shiny and Theralite appears Veined and Shiny. The luster of Banded iron formation is earthy while that of Theralite is waxy and dull. Banded iron formation is available in red, reddish brown colors whereas Theralite is available in dark grey to black colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.