Know all about Tachylite and Norite properties here. All properties of rocks are important as they define the type of rock and its application. Tachylite and Norite belong to Igneous Rocks.Texture of Tachylite is Vitreous whereas that of Norite is Phaneritic. Tachylite appears Glassy and Norite appears Veined and Shiny. The luster of Tachylite is resinous while that of Norite is not available. Tachylite is available in black, dark brown colors whereas Norite is available in dark grey to black colors. The commercial uses of Tachylite are cemetery markers, creating artwork and that of Norite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.