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