Know all about Icelandite and Felsite properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite and Felsite belong to Igneous Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Felsite is Arborescent Patterned, Vitreous. Icelandite appears Dull and Soft and Felsite appears Layered, Banded, Veined and Shiny. The luster of Icelandite and Felsite is vitreous. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Felsite are mirror, jewelry.