Know all about Banded iron formation and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Banded iron formation and Gritstone belong to Sedimentary Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Gritstone is Earthy. Banded iron formation appears Layered, Banded, Veined and Shiny and Gritstone appears Layered and Foliated. The luster of Banded iron formation is earthy while that of Gritstone is dull. Banded iron formation is available in red, reddish brown colors whereas Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones.