Know all about Blue Granite and Itacolumite 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 Itacolumite belongs to Sedimentary Rocks.Texture of Blue Granite is Phaneritic whereas that of Itacolumite is Clastic, Granular, Rough. Blue Granite appears Shiny and Itacolumite appears Rough. The luster of Blue Granite is subvitreous to dull while that of Itacolumite is dull. Blue Granite is available in black, brown, light to dark grey, white colors whereas Itacolumite is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling and that of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.