Know all about Rhomb Porphyry and Claystone 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 Claystone belongs to Sedimentary Rocks.Texture of Rhomb Porphyry is Aphanitic to Porphyritic whereas that of Claystone is Clastic. Rhomb Porphyry appears Rough and Claystone appears Rough and Dull. The luster of Rhomb Porphyry is subvitreous to dull while that of Claystone is dull. Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors whereas Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow 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 Claystone are pottery.