Know all about Obsidian and Lamprophyre properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian and Lamprophyre belong to Igneous Rocks.Texture of Obsidian is Glassy whereas that of Lamprophyre is Porphyritic. Obsidian appears Shiny and Lamprophyre appears Dull, Banded and Foilated. The luster of Obsidian is vitreous while that of Lamprophyre is subvitreous to dull. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Obsidian are creating artwork, mirror, used in aquariums 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).