Know all about Granophyre and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Granophyre and Tachylite belong to Igneous Rocks.Texture of Granophyre is Granophyric whereas that of Tachylite is Vitreous. Granophyre appears Veined or Pebbled and Tachylite appears Glassy. The luster of Granophyre is dull to grainy with sporadic parts pearly and vitreous while that of Tachylite is resinous. Granophyre is available in black, grey, orange, pink, white colors whereas Tachylite is available in black, dark brown colors. The commercial uses of Granophyre are curling, gemstone, laboratory bench tops, tombstones and that of Tachylite are cemetery markers, creating artwork.