Know all about Tephrite and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite and Rhomb Porphyry belong to Igneous Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Tephrite appears Vesicular and Rhomb Porphyry appears Rough. The luster of Tephrite and Rhomb Porphyry is subvitreous to dull. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Tephrite are production of lime, soil conditioner 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).