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