Know all about Banded iron formation and Phonolite 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 Phonolite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Phonolite is Granular. Banded iron formation appears Layered, Banded, Veined and Shiny and Phonolite appears Banded and Foilated. The luster of Banded iron formation is earthy while that of Phonolite is greasy to dull. Banded iron formation is available in red, reddish brown colors whereas Phonolite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Banded iron formation and Phonolite are as a touchstone, cemetery markers, creating artwork.