Know all about Blueschist and Icelandite properties here. All properties of rocks are important as they define the type of rock and its application. Blueschist belongs to Metamorphic Rocks while Icelandite belongs to Igneous Rocks.Texture of Blueschist is Foliated whereas that of Icelandite is Aphanitic to Porphyritic. Blueschist appears Dull and Banded and Icelandite appears Dull and Soft. The luster of Blueschist is dull while that of Icelandite is vitreous. Blueschist is available in blue, bluish - grey, purple, shades of blue colors whereas Icelandite is available in bluish - grey, grey, pink, yellow colors. The commercial uses of Blueschist and Icelandite are cemetery markers, commemorative tablets, creating artwork, curling, tombstones.