Know all about Gneiss and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Gneiss belongs to Metamorphic Rocks while Jasperoid belongs to Sedimentary Rocks.Texture of Gneiss is Banded, Foliated, Platy whereas that of Jasperoid is Earthy. Gneiss appears Foliated and Jasperoid appears Glassy or Pearly. The luster of Gneiss is dull while that of Jasperoid is vitreous and pearly. Gneiss is available in black, brown, pink, red, white colors whereas Jasperoid is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums and that of Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).