Know all about Teschenite and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Teschenite belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks.Texture of Teschenite is Phaneritic whereas that of Gossan is Rough, Sandy. Teschenite appears Veined and Shiny and Gossan appears Dull and Banded. The luster of Teschenite is not available while that of Gossan is metallic. Teschenite is available in dark grey to black colors whereas Gossan is available in brown, brown- black, gold, green, rust colors. The commercial uses of Teschenite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones and that of Gossan are cemetery markers, commemorative tablets, gemstone.