Know all about Banded iron formation and Appinite 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 Appinite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Appinite is Porphyritic. Banded iron formation appears Layered, Banded, Veined and Shiny and Appinite appears Dull, Banded and Foilated. The luster of Banded iron formation is earthy while that of Appinite is subvitreous to dull. Banded iron formation is available in red, reddish brown colors whereas Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner.