Know all about Rhomb Porphyry and Greenschist properties here. All properties of rocks are important as they define the type of rock and its application. Rhomb Porphyry belongs to Igneous Rocks while Greenschist belongs to Metamorphic Rocks.Texture of Rhomb Porphyry is Aphanitic to Porphyritic whereas that of Greenschist is Foliated, Platy. Rhomb Porphyry appears Rough and Greenschist appears Layered and Shiny. The luster of Rhomb Porphyry is subvitreous to dull while that of Greenschist is shiny. Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors whereas Greenschist is available in dark greenish - grey, green 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 Greenschist are blackboards, manufacture of tools, writing slates.