Know all about Hyaloclastite and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite belongs to Igneous Rocks while Skarn belongs to Metamorphic Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Skarn is Earthy, Mud-rich, Rough. Hyaloclastite appears Dull and Skarn appears Dull. The luster of Hyaloclastite is dull and grainy while that of Skarn is waxy and dull. Hyaloclastite is available in brown, grey, yellow colors whereas Skarn is available in black, brown, colourless, green, grey, white colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).