Know all about Marl and Taconite properties here. All properties of rocks are important as they define the type of rock and its application. Marl and Taconite belong to Sedimentary Rocks.Texture of Marl is Earthy whereas that of Taconite is Banded, Trellis. Marl appears Rough and Dull and Taconite appears Layered, Banded, Veined and Shiny. The luster of Marl is dull while that of Taconite is earthy. Marl is available in beige, brown, green, grey, white colors whereas Taconite is available in red, reddish brown colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Taconite are as a touchstone, cemetery markers, creating artwork.