Know all about Hornfels and Trachyandesite properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels belongs to Metamorphic Rocks while Trachyandesite belongs to Igneous Rocks.Texture of Hornfels is Granular, Platy whereas that of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Hornfels appears Dull and Trachyandesite appears Dull and Soft. The luster of Hornfels is shiny while that of Trachyandesite is earthy. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas Trachyandesite is available in black, brown, light to dark grey colors. The commercial uses of Hornfels are cemetery markers, commemorative tablets, creating artwork and that of Trachyandesite are creating artwork, pottery.