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