Know all about Hornfels and Hawaiite properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels belongs to Metamorphic Rocks while Hawaiite belongs to Igneous Rocks.Texture of Hornfels is Granular, Platy whereas that of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Hornfels appears Dull and Hawaiite appears Dull and Soft. The luster of Hornfels is shiny while that of Hawaiite is not available. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas Hawaiite 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 Hawaiite are creating artwork, sea defence.