Know all about Diorite and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Diorite and Rhomb Porphyry belong to Igneous Rocks.Texture of Diorite is Phaneritic whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Diorite appears Shiny and Rhomb Porphyry appears Rough. The luster of Diorite is shiny while that of Rhomb Porphyry is subvitreous to dull. Diorite is available in black, brown, light to dark grey, white colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Diorite are creating artwork, curling 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).