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