Connemara Marble Sterling Necklace New With Tags Rare and beautiful, Connemara marble is found exclusively along Ireland’s rugged wild Atlantic coast. Connemara marble was formed from sediment deposited in a shallow primal sea over 600 million years ago. These sediments were transformed by formidable forces generated in the formation of the mountains of the West of Ireland and Scotland over 390 million years ago. Handcrafted in Ireland. Please see all photos and video Non smoking but a pug lives here.