Know all about Diabase and Alkali Feldspar Granite properties here. All properties of rocks are important as they define the type of rock and its application. Diabase and Alkali Feldspar Granite belong to Igneous Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Alkali Feldspar Granite is Phaneritic. Diabase appears Vesicular and Alkali Feldspar Granite appears Veined or Pebbled. The luster of Diabase is not available while that of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous. Diabase is available in dark grey to black colors whereas Alkali Feldspar Granite is available in black, grey, orange, pink, white colors. The commercial uses of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones.