DetailsA rare, green marble dating back some 700 million years to the end of the Pre-Cambrian. It is Serpentine rich containing around 36%. It can vary in colour from silver grey to a dark variegating jade green. It's "40 shades of green" have made it a popular ornamental carving & facing stone. It was known to be traded as far back as Neolithic times. This marble comes from the Streamstown quarry in Clifden, Co. Galway. Specimens ( max size 3" x 2") are supplied in a labelled card tray.