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