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