Know all about Carbonatite and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Carbonatite belongs to Igneous Rocks while Siltstone belongs to Sedimentary Rocks.Texture of Carbonatite is Granular, Poikiloblastic whereas that of Siltstone is Clastic. Carbonatite appears Dull, Banded and Foilated and Siltstone appears Rough. The luster of Carbonatite is subvitreous to dull while that of Siltstone is dull. Carbonatite is available in black, brown, colourless, green, grey, pink, white colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Carbonatite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.