Know all about Basalt and Rapakivi Granite properties here. All properties of rocks are important as they define the type of rock and its application. Basalt and Rapakivi Granite belong to Igneous Rocks.Texture of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Rapakivi Granite is Granular, Phaneritic. Basalt appears Dull and Soft and Rapakivi Granite appears Veined or Pebbled. The luster of Basalt is not available while that of Rapakivi Granite is dull to grainy with sporadic parts pearly and vitreous. Basalt 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 Basalt are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums and that of Rapakivi Granite are cemetery markers, commemorative tablets, creating artwork, curling, laboratory bench tops, tombstones.