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