Know all about Banded iron formation and Diorite 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 Diorite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Diorite is Phaneritic. Banded iron formation appears Layered, Banded, Veined and Shiny and Diorite appears Shiny. The luster of Banded iron formation is earthy while that of Diorite is shiny. Banded iron formation is available in red, reddish brown colors whereas Diorite is available in black, brown, light to dark grey, white colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Diorite are creating artwork, curling.