Know all about Banded iron formation and Alkali Feldspar Granite properties here. All properties of rocks are important as they define the type of rock and its application. Banded iron formation belongs to Sedimentary Rocks while Alkali Feldspar Granite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Alkali Feldspar Granite is Phaneritic. Banded iron formation appears Layered, Banded, Veined and Shiny and Alkali Feldspar Granite appears Veined or Pebbled. The luster of Banded iron formation is earthy while that of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous. Banded iron formation is available in red, reddish brown colors whereas Alkali Feldspar Granite is available in black, grey, orange, pink, white colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones.