Know all about Hornfels and Greenschist properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels and Greenschist belong to Metamorphic Rocks.Texture of Hornfels is Granular, Platy whereas that of Greenschist is Foliated, Platy. Hornfels appears Dull and Greenschist appears Layered and Shiny. The luster of Hornfels and Greenschist is shiny. Hornfels and Greenschist are available in brown, dark greenish - grey, green, reddish brown colors. The commercial uses of Hornfels are cemetery markers, commemorative tablets, creating artwork and that of Greenschist are blackboards, manufacture of tools, writing slates.