Know all about Lignite and Kimberlite properties here. All properties of rocks are important as they define the type of rock and its application. Lignite belongs to Sedimentary Rocks while Kimberlite belongs to Igneous Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Kimberlite is Porphyritic. Lignite appears Veined or Pebbled and Kimberlite appears Dull and Banded. The luster of Lignite is dull to vitreous to submetallic while that of Kimberlite is subvitreous to dull. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Kimberlite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Lignite are electricity generation and that of Kimberlite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).