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