Know all about Icelandite and Lamprophyre properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite and Lamprophyre belong to Igneous Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Lamprophyre is Porphyritic. Icelandite appears Dull and Soft and Lamprophyre appears Dull, Banded and Foilated. The luster of Icelandite is vitreous while that of Lamprophyre is subvitreous to dull. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Lamprophyre are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).