Know all about Tachylite and Basanite properties here. All properties of rocks are important as they define the type of rock and its application. Tachylite and Basanite belong to Igneous Rocks.Texture of Tachylite is Vitreous whereas that of Basanite is Aphanitic to Porphyritic. Tachylite appears Glassy and Basanite appears Glassy or Pearly. The luster of Tachylite is resinous while that of Basanite is waxy and dull. Tachylite is available in black, dark brown colors whereas Basanite is available in black, brown, green, grey, red, white colors. The commercial uses of Tachylite are cemetery markers, creating artwork and that of Basanite are as a touchstone, creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms.