Know all about Oil shale and Alkali Feldspar Granite properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale belongs to Sedimentary Rocks while Alkali Feldspar Granite belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Alkali Feldspar Granite is Phaneritic. Oil shale appears Muddy and Alkali Feldspar Granite appears Veined or Pebbled. The luster of Oil shale is dull while that of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Alkali Feldspar Granite is available in black, grey, orange, pink, white colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones.