Know all about Hornfels and Gabbro properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels belongs to Metamorphic Rocks while Gabbro belongs to Igneous Rocks.Texture of Hornfels is Granular, Platy whereas that of Gabbro is Phaneritic. Hornfels appears Dull and Gabbro appears Veined and Shiny. The luster of Hornfels is shiny while that of Gabbro is not available. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas Gabbro is available in dark grey to black colors. The commercial uses of Hornfels are cemetery markers, commemorative tablets, creating artwork and that of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.