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