One of the rarest marbles in the world, Connemara Marble can only be found in Connemara on the west coast of Ireland. It is reputed to be over 900 million years old. The trinity knot symbolizes the Father, Son and Holy Spirit - or a more modern interpretation is mind, body and spirit. This gorgeous marble and sterling silver pendant measures 1.25" x .75", comes with an 18" chain and arrives gift boxed.