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