Know all about Rhyolite and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Rhyolite and Rhomb Porphyry belong to Igneous Rocks.Texture of Rhyolite is Aphanitic, Glassy, Porphyritic whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Rhyolite appears Banded and Rhomb Porphyry appears Rough. The luster of Rhyolite is earthy while that of Rhomb Porphyry is subvitreous to dull. Rhyolite is available in grey, white, light black colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Rhyolite are gemstone, laboratory bench tops, jewelry 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).