Know all about Banded iron formation and Trachyandesite 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 Trachyandesite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Banded iron formation appears Layered, Banded, Veined and Shiny and Trachyandesite appears Dull and Soft. The luster of Banded iron formation and Trachyandesite is earthy. Banded iron formation is available in red, reddish brown colors whereas Trachyandesite is available in black, brown, light to dark grey colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Trachyandesite are creating artwork, pottery.