Know all about Hyaloclastite and Hornfels properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite belongs to Igneous Rocks while Hornfels belongs to Metamorphic Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Hornfels is Granular, Platy. Hyaloclastite appears Dull and Hornfels appears Dull. The luster of Hyaloclastite is dull and grainy while that of Hornfels is shiny. Hyaloclastite is available in brown, grey, yellow colors whereas Hornfels is available in brown, dark greenish - grey, green, reddish brown colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Hornfels are cemetery markers, commemorative tablets, creating artwork.