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