Know all about Arkose and Rapakivi Granite properties here. All properties of rocks are important as they define the type of rock and its application. Arkose belongs to Sedimentary Rocks while Rapakivi Granite belongs to Igneous Rocks.Texture of Arkose is Clastic whereas that of Rapakivi Granite is Granular, Phaneritic. Arkose appears Rough and Dull and Rapakivi Granite appears Veined or Pebbled. The luster of Arkose is dull while that of Rapakivi Granite is dull to grainy with sporadic parts pearly and vitreous. Arkose is available in reddish brown colors whereas Rapakivi Granite is available in black, grey, orange, pink, white colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Rapakivi Granite are cemetery markers, commemorative tablets, creating artwork, curling, laboratory bench tops, tombstones.