Know all about Theralite and Basalt properties here. All properties of rocks are important as they define the type of rock and its application. Theralite and Basalt belong to Igneous Rocks.Texture of Theralite is Phaneritic whereas that of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Theralite appears Veined and Shiny and Basalt appears Dull and Soft. The luster of Theralite is waxy and dull while that of Basalt is not available. Theralite is available in dark grey to black colors whereas Basalt is available in black, brown, light to dark grey colors. The commercial uses of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones and that of Basalt are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums.