Know all about Nephelinite and Theralite properties here. All properties of rocks are important as they define the type of rock and its application. Nephelinite and Theralite belong to Igneous Rocks.Texture of Nephelinite is Aphanitic whereas that of Theralite is Phaneritic. Nephelinite appears Skeletal and Theralite appears Veined and Shiny. The luster of Nephelinite is vitreous to metallic while that of Theralite is waxy and dull. Nephelinite is available in black, brown, colourless, green, grey, white colors whereas Theralite is available in dark grey to black colors. The commercial uses of Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo) and that of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.