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