Know all about Variolite and Carbonatite properties here. All properties of rocks are important as they define the type of rock and its application. Variolite and Carbonatite belong to Igneous Rocks.Texture of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Carbonatite is Granular, Poikiloblastic. Variolite appears Dull and Soft and Carbonatite appears Dull, Banded and Foilated. The luster of Variolite is not available while that of Carbonatite is subvitreous to dull. Variolite is available in black, brown, light to dark grey colors whereas Carbonatite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Variolite are cemetery markers, creating artwork and that of Carbonatite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux.