Know all about Harzburgite and Gneiss properties here. All properties of rocks are important as they define the type of rock and its application. Harzburgite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks.Texture of Harzburgite is Phaneritic whereas that of Gneiss is Banded, Foliated, Platy. Harzburgite appears Rough and Shiny and Gneiss appears Foliated. The luster of Harzburgite is shiny while that of Gneiss is dull. Harzburgite is available in dark greenish - grey colors whereas Gneiss is available in black, brown, pink, red, white colors. The commercial uses of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums.