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