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