Know all about Greenschist and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Greenschist belongs to Metamorphic Rocks while Variolite belongs to Igneous Rocks.Texture of Greenschist is Foliated, Platy whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Greenschist appears Layered and Shiny and Variolite appears Dull and Soft. The luster of Greenschist is shiny while that of Variolite is not available. Greenschist is available in dark greenish - grey, green colors whereas Variolite is available in black, brown, light to dark grey colors. The commercial uses of Greenschist are blackboards, manufacture of tools, writing slates and that of Variolite are cemetery markers, creating artwork.