Know all about Icelandite and Oolite properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite belongs to Igneous Rocks while Oolite belongs to Sedimentary Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Oolite is Clastic or Non-Clastic. Icelandite appears Dull and Soft and Oolite appears Rounded and Rough. The luster of Icelandite is vitreous while that of Oolite is pearly to shiny. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Oolite are creating artwork, jewelry, used in aquariums.