Know all about Theralite and Websterite properties here. All properties of rocks are important as they define the type of rock and its application. Theralite and Websterite belong to Igneous Rocks.Texture of Theralite is Phaneritic whereas that of Websterite is Clastic, Granular, Phaneritic, Porphyritic. Theralite appears Veined and Shiny and Websterite appears Layered, Banded, Veined and Shiny. The luster of Theralite is waxy and dull while that of Websterite is dull to vitreous to submetallic. Theralite is available in dark grey to black colors whereas Websterite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Theralite and Websterite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.