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