Know all about Blue Granite and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Blue Granite belongs to Igneous Rocks while Skarn belongs to Metamorphic Rocks.Texture of Blue Granite is Phaneritic whereas that of Skarn is Earthy, Mud-rich, Rough. Blue Granite appears Shiny and Skarn appears Dull. The luster of Blue Granite is subvitreous to dull while that of Skarn is waxy and dull. Blue Granite is available in black, brown, light to dark grey, white colors whereas Skarn is available in black, brown, colourless, green, grey, white colors. The commercial uses of Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling and that of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).