Know all about Icelandite and Teschenite properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite and Teschenite belong to Igneous Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Teschenite is Phaneritic. Icelandite appears Dull and Soft and Teschenite appears Veined and Shiny. The luster of Icelandite is vitreous while that of Teschenite is not available. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Teschenite is available in dark grey to black colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Teschenite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.