Know all about Blue Granite and Harzburgite properties here. All properties of rocks are important as they define the type of rock and its application. Blue Granite and Harzburgite belong to Igneous Rocks.Texture of Blue Granite is Phaneritic whereas that of Harzburgite is Phaneritic. Blue Granite appears Shiny and Harzburgite appears Rough and Shiny. The luster of Blue Granite is subvitreous to dull while that of Harzburgite is shiny. Blue Granite is available in black, brown, light to dark grey, white colors whereas Harzburgite is available in dark greenish - grey colors. The commercial uses of Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling and that of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.