Know all about Coquina and Hornfels properties here. All properties of rocks are important as they define the type of rock and its application. Coquina belongs to Sedimentary Rocks while Hornfels belongs to Metamorphic Rocks.Texture of Coquina is Clastic whereas that of Hornfels is Granular, Platy. Coquina appears Layered, Banded, Veined and Shiny and Hornfels appears Dull. The luster of Coquina is dull to vitreous to submetallic while that of Hornfels is shiny. Coquina is available in beige, buff, orange colors whereas Hornfels is available in brown, dark greenish - grey, green, reddish brown colors. The commercial uses of Coquina are creating artwork and that of Hornfels are cemetery markers, commemorative tablets, creating artwork.