Know all about Tachylite and Mangerite properties here. All properties of rocks are important as they define the type of rock and its application. Tachylite and Mangerite belong to Igneous Rocks.Texture of Tachylite is Vitreous whereas that of Mangerite is Phaneritic. Tachylite appears Glassy and Mangerite appears Shiny. The luster of Tachylite is resinous while that of Mangerite is subvitreous to dull. Tachylite is available in black, dark brown colors whereas Mangerite is available in black, brown, light to dark grey, white colors. The commercial uses of Tachylite and Mangerite are cemetery markers, creating artwork.