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