Know all about Carbonatite and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Carbonatite and Obsidian belong to Igneous Rocks.Texture of Carbonatite is Granular, Poikiloblastic whereas that of Obsidian is Glassy. Carbonatite appears Dull, Banded and Foilated and Obsidian appears Shiny. The luster of Carbonatite is subvitreous to dull while that of Obsidian is vitreous. Carbonatite is available in black, brown, colourless, green, grey, pink, white colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Carbonatite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux and that of Obsidian are creating artwork, mirror, used in aquariums.