Know all about Banded iron formation and Rhyodacite 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 Rhyodacite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Rhyodacite is Earthy. Banded iron formation appears Layered, Banded, Veined and Shiny and Rhyodacite appears Skeletal. The luster of Banded iron formation is earthy while that of Rhyodacite is greasy to dull. Banded iron formation is available in red, reddish brown colors whereas Rhyodacite is available in black to grey, dark greenish - grey colors. The commercial uses of Banded iron formation and Rhyodacite are as a touchstone, cemetery markers, creating artwork.