Know all about Taconite and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Taconite belongs to Sedimentary Rocks while Picrite belongs to Igneous Rocks.Texture of Taconite is Banded, Trellis whereas that of Picrite is Earthy, Rough. Taconite appears Layered, Banded, Veined and Shiny and Picrite appears Rough and Shiny. The luster of Taconite is earthy while that of Picrite is subvitreous to dull. Taconite is available in red, reddish brown colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Taconite are as a touchstone, cemetery markers, creating artwork and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).