Know all about Hornfels and Shale properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels belongs to Metamorphic Rocks while Shale belongs to Sedimentary Rocks.Texture of Hornfels is Granular, Platy whereas that of Shale is Clastic, Splintery. Hornfels appears Dull and Shale appears Muddy. The luster of Hornfels is shiny while that of Shale is dull. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas Shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Hornfels are cemetery markers, commemorative tablets, creating artwork and that of Shale are creating artwork, pottery.