Know all about Icelandite and Schist properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite belongs to Igneous Rocks while Schist belongs to Metamorphic Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Schist is Foliated, Platy. Icelandite appears Dull and Soft and Schist appears Layered and Shiny. The luster of Icelandite is vitreous while that of Schist is shiny. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Schist is available in black, blue, brown, dark brown, green, grey, silver colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Schist are used in aquariums, writing slates.