Know all about Rhomb Porphyry and Banded iron formation properties here. All properties of rocks are important as they define the type of rock and its application. Rhomb Porphyry belongs to Igneous Rocks while Banded iron formation belongs to Sedimentary Rocks.Texture of Rhomb Porphyry is Aphanitic to Porphyritic whereas that of Banded iron formation is Banded, Trellis. Rhomb Porphyry appears Rough and Banded iron formation appears Layered, Banded, Veined and Shiny. The luster of Rhomb Porphyry is subvitreous to dull while that of Banded iron formation is earthy. Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors whereas Banded iron formation is available in red, reddish brown colors. The commercial uses of Rhomb Porphyry are an oil and gas reservoir, as a feed additive for livestock, metallurgical flux, soil conditioner, source of magnesia (mgo) and that of Banded iron formation are as a touchstone, cemetery markers, creating artwork.