This Connemara Marble bead bracelet will stretch to fit most wrists. Dating from the Pre-Cambrian era, Connemara Marble is over 600 million years old. It is found only in a remote area in the West of Ireland. It is a metamorphic rock formed when limestone was heated under pressure, producing a hard granular rock. Its unique green color symbolizes Ireland. It is said to bring serenity to those who keep it close.