Know all about Carbonatite and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Carbonatite and Tachylite belong to Igneous Rocks.Texture of Carbonatite is Granular, Poikiloblastic whereas that of Tachylite is Vitreous. Carbonatite appears Dull, Banded and Foilated and Tachylite appears Glassy. The luster of Carbonatite is subvitreous to dull while that of Tachylite is resinous. Carbonatite is available in black, brown, colourless, green, grey, pink, white colors whereas Tachylite is available in black, dark 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 Tachylite are cemetery markers, creating artwork.