Know all about Syenite and Banded iron formation properties here. All properties of rocks are important as they define the type of rock and its application. Syenite belongs to Igneous Rocks while Banded iron formation belongs to Sedimentary Rocks.Texture of Syenite is Earthy whereas that of Banded iron formation is Banded, Trellis. Syenite appears Banded and Foilated and Banded iron formation appears Layered, Banded, Veined and Shiny. The luster of Syenite is subvitreous to dull while that of Banded iron formation is earthy. Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Banded iron formation is available in red, reddish brown colors. The commercial uses of Syenite are cemetery markers, creating artwork and that of Banded iron formation are as a touchstone, cemetery markers, creating artwork.