Marble Slabworks Of Montana
marble, too, is a metamorphic rock that is formed when limestone is subjected to tremendous heat and pressure. pure marble is white and its palette can range all the way through to solid black. our clients use it for countertops, floors, walls, sinks, soaking tubs, shower surrounds, and exterior building cladding. this unique surface is sep 22, 2011 8.1 the quarry from which these specimens come produced trachyte, but this trachyte is a dark brown, very tough rock that lies underneath the amygdaloidal, crystal-bearing layers. the large amount of calcite present in fissures and cavities indicates a more dacitic or andesitic composition.