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