Know all about Harzburgite and Rhyodacite properties here. All properties of rocks are important as they define the type of rock and its application. Harzburgite and Rhyodacite belong to Igneous Rocks.Texture of Harzburgite is Phaneritic whereas that of Rhyodacite is Earthy. Harzburgite appears Rough and Shiny and Rhyodacite appears Skeletal. The luster of Harzburgite is shiny while that of Rhyodacite is greasy to dull. Harzburgite is available in dark greenish - grey colors whereas Rhyodacite is available in black to grey, dark greenish - grey colors. The commercial uses of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Rhyodacite are cemetery markers, creating artwork.