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