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