Know all about Rhomb Porphyry and Mylonite 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 Mylonite belongs to Metamorphic Rocks.Texture of Rhomb Porphyry is Aphanitic to Porphyritic whereas that of Mylonite is Foliated. Rhomb Porphyry appears Rough and Mylonite appears Dull, Banded and Foilated. The luster of Rhomb Porphyry is subvitreous to dull while that of Mylonite is shiny. Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors whereas Mylonite is available in black to grey 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 Mylonite are creating artwork, gemstone, jewelry.