Know all about Rhomb Porphyry and Norite properties here. All properties of rocks are important as they define the type of rock and its application. Rhomb Porphyry and Norite belong to Igneous Rocks.Texture of Rhomb Porphyry is Aphanitic to Porphyritic whereas that of Norite is Phaneritic. Rhomb Porphyry appears Rough and Norite appears Veined and Shiny. The luster of Rhomb Porphyry is subvitreous to dull while that of Norite is not available. Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors whereas Norite is available in dark grey to black 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 Norite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.