Know all about Limestone and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Limestone belongs to Sedimentary Rocks while Variolite belongs to Igneous Rocks.Texture of Limestone is Clastic or Non-Clastic whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Limestone appears Rough and Banded and Variolite appears Dull and Soft. The luster of Limestone is dull to pearly while that of Variolite is not available. Limestone is available in beige, black, blue, brown, cream, gold, green, grey, light green, light grey, linen, pink, red, rust, silver, white, yellow colors whereas Variolite is available in black, brown, light to dark grey colors. The commercial uses of Limestone are animal feed filler, as a feed additive for livestock, paper industry, raw material for manufacture of quicklime, slaked lime, soil conditioner, used in aquariums, whiting material in toothpaste, paint and paper and that of Variolite are cemetery markers, creating artwork.