Know all about Rapakivi Granite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Rapakivi Granite belongs to Igneous Rocks while Pseudotachylite belongs to Metamorphic Rocks.Texture of Rapakivi Granite is Granular, Phaneritic whereas that of Pseudotachylite is Quench. Rapakivi Granite appears Veined or Pebbled and Pseudotachylite appears Dull and Soft. The luster of Rapakivi Granite is dull to grainy with sporadic parts pearly and vitreous while that of Pseudotachylite is vitreous. Rapakivi Granite is available in black, grey, orange, pink, white colors whereas Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Rapakivi Granite are cemetery markers, commemorative tablets, creating artwork, curling, laboratory bench tops, tombstones and that of Pseudotachylite are creating artwork, gemstone.