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