Know all about Theralite and Teschenite properties here. All properties of rocks are important as they define the type of rock and its application. Theralite and Teschenite belong to Igneous Rocks.Texture of Theralite is Phaneritic whereas that of Teschenite is Phaneritic. Theralite appears Veined and Shiny and Teschenite appears Veined and Shiny. The luster of Theralite is waxy and dull while that of Teschenite is not available. Theralite and Teschenite are available in dark grey to black colors. The commercial uses of Theralite and Teschenite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.