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