Know all about Theralite and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Theralite and Rhomb Porphyry belong to Igneous Rocks.Texture of Theralite is Phaneritic whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Theralite appears Veined and Shiny and Rhomb Porphyry appears Rough. The luster of Theralite is waxy and dull while that of Rhomb Porphyry is subvitreous to dull. Theralite is available in dark grey to black colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones 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).