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