Know all about Icelandite and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Gossan is Rough, Sandy. Icelandite appears Dull and Soft and Gossan appears Dull and Banded. The luster of Icelandite is vitreous while that of Gossan is metallic. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Gossan is available in brown, brown- black, gold, green, rust colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Gossan are cemetery markers, commemorative tablets, gemstone.