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