Know all about Carbonatite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Carbonatite belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks.Texture of Carbonatite is Granular, Poikiloblastic whereas that of Lignite is Amorphous, Glassy. Carbonatite appears Dull, Banded and Foilated and Lignite appears Veined or Pebbled. The luster of Carbonatite is subvitreous to dull while that of Lignite is dull to vitreous to submetallic. Carbonatite is available in black, brown, colourless, green, grey, pink, white colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Carbonatite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux and that of Lignite are electricity generation.