Know all about Taconite and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Taconite belongs to Sedimentary Rocks while Tachylite belongs to Igneous Rocks.Texture of Taconite is Banded, Trellis whereas that of Tachylite is Vitreous. Taconite appears Layered, Banded, Veined and Shiny and Tachylite appears Glassy. The luster of Taconite is earthy while that of Tachylite is resinous. Taconite is available in red, reddish brown colors whereas Tachylite is available in black, dark brown colors. The commercial uses of Taconite and Tachylite are as a touchstone, cemetery markers, creating artwork.