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