Know all about Greenschist and Marl properties here. All properties of rocks are important as they define the type of rock and its application. Greenschist belongs to Metamorphic Rocks while Marl belongs to Sedimentary Rocks.Texture of Greenschist is Foliated, Platy whereas that of Marl is Earthy. Greenschist appears Layered and Shiny and Marl appears Rough and Dull. The luster of Greenschist is shiny while that of Marl is dull. Greenschist is available in dark greenish - grey, green colors whereas Marl is available in beige, brown, green, grey, white colors. The commercial uses of Greenschist are blackboards, manufacture of tools, writing slates and that of Marl are creating artwork, soil conditioner.