Know all about Trachyte and Banded iron formation properties here. All properties of rocks are important as they define the type of rock and its application. Trachyte belongs to Igneous Rocks while Banded iron formation belongs to Sedimentary Rocks.Texture of Trachyte is Aphanitic to Porphyritic whereas that of Banded iron formation is Banded, Trellis. Trachyte appears Banded and Banded iron formation appears Layered, Banded, Veined and Shiny. The luster of Trachyte is metallic while that of Banded iron formation is earthy. Trachyte is available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors whereas Banded iron formation is available in red, reddish brown colors. The commercial uses of Trachyte are cemetery markers, creating artwork and that of Banded iron formation are as a touchstone, cemetery markers, creating artwork.