Know all about Tachylite and Anorthosite properties here. All properties of rocks are important as they define the type of rock and its application. Tachylite and Anorthosite belong to Igneous Rocks.Texture of Tachylite is Vitreous whereas that of Anorthosite is Foliated, Glassy. Tachylite appears Glassy and Anorthosite appears Layered, Banded, Veined and Shiny. The luster of Tachylite is resinous while that of Anorthosite is pearly to subvitreous. Tachylite is available in black, dark brown colors whereas Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. The commercial uses of Tachylite are cemetery markers, creating artwork and that of Anorthosite are creating artwork, curling.