Know all about Rhomb Porphyry and Skarn 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 Skarn belongs to Metamorphic Rocks.Texture of Rhomb Porphyry is Aphanitic to Porphyritic whereas that of Skarn is Earthy, Mud-rich, Rough. Rhomb Porphyry appears Rough and Skarn appears Dull. The luster of Rhomb Porphyry is subvitreous to dull while that of Skarn is waxy and dull. Rhomb Porphyry and Skarn are available in black, brown, colourless, green, grey, pink, white 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 Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).