Know all about Rhomb Porphyry and Comendite properties here. All properties of rocks are important as they define the type of rock and its application. Rhomb Porphyry and Comendite belong to Igneous Rocks.Texture of Rhomb Porphyry is Aphanitic to Porphyritic whereas that of Comendite is Porphyritic. Rhomb Porphyry appears Rough and Comendite appears Foliated. The luster of Rhomb Porphyry is subvitreous to dull while that of Comendite is dull. Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors whereas Comendite is available in blue, bluish - 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 Comendite are cemetery markers.