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