Know all about Arkose and Icelandite properties here. All properties of rocks are important as they define the type of rock and its application. Arkose belongs to Sedimentary Rocks while Icelandite belongs to Igneous Rocks.Texture of Arkose is Clastic whereas that of Icelandite is Aphanitic to Porphyritic. Arkose appears Rough and Dull and Icelandite appears Dull and Soft. The luster of Arkose is dull while that of Icelandite is vitreous. Arkose is available in reddish brown colors whereas Icelandite is available in bluish - grey, grey, pink, yellow colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Icelandite are cemetery markers, creating artwork.