Know all about Gneiss and Teschenite properties here. All properties of rocks are important as they define the type of rock and its application. Gneiss belongs to Metamorphic Rocks while Teschenite belongs to Igneous Rocks.Texture of Gneiss is Banded, Foliated, Platy whereas that of Teschenite is Phaneritic. Gneiss appears Foliated and Teschenite appears Veined and Shiny. The luster of Gneiss is dull while that of Teschenite is not available. Gneiss is available in black, brown, pink, red, white colors whereas Teschenite is available in dark grey to black colors. The commercial uses of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums and that of Teschenite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.