Know all about Icelandite and Peridotite properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite and Peridotite belong to Igneous Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Peridotite is Phaneritic. Icelandite appears Dull and Soft and Peridotite appears Rough and Shiny. The luster of Icelandite is vitreous while that of Peridotite is shiny. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Peridotite is available in dark greenish - grey colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Peridotite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.