Know all about Icelandite and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite belongs to Igneous Rocks while Jasperoid belongs to Sedimentary Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Jasperoid is Earthy. Icelandite appears Dull and Soft and Jasperoid appears Glassy or Pearly. The luster of Icelandite is vitreous while that of Jasperoid is vitreous and pearly. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Jasperoid is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).