Know all about Hornfels and Peridotite properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels belongs to Metamorphic Rocks while Peridotite belongs to Igneous Rocks.Texture of Hornfels is Granular, Platy whereas that of Peridotite is Phaneritic. Hornfels appears Dull and Peridotite appears Rough and Shiny. The luster of Hornfels and Peridotite is shiny. Hornfels and Peridotite 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 Peridotite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.