Know all about Limestone and Icelandite properties here. All properties of rocks are important as they define the type of rock and its application. Limestone belongs to Sedimentary Rocks while Icelandite belongs to Igneous Rocks.Texture of Limestone is Clastic or Non-Clastic whereas that of Icelandite is Aphanitic to Porphyritic. Limestone appears Rough and Banded and Icelandite appears Dull and Soft. The luster of Limestone is dull to pearly while that of Icelandite is vitreous. 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 Icelandite is available in bluish - grey, grey, pink, yellow 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 Icelandite are cemetery markers, creating artwork.