Know all about Arkose and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Arkose belongs to Sedimentary Rocks while Rhomb Porphyry belongs to Igneous Rocks.Texture of Arkose is Clastic whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Arkose appears Rough and Dull and Rhomb Porphyry appears Rough. The luster of Arkose is dull while that of Rhomb Porphyry is subvitreous to dull. Arkose is available in reddish brown colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Rhomb Porphyry are an oil and gas reservoir, as a feed additive for livestock, metallurgical flux, soil conditioner, source of magnesia (mgo).