Irish Connemara Marble Necklace

This is one of the larger pieces of connemara marble which I have seen in a pendant. Considered the national gemstone of Ireland. Hard wearing stone compared to most other marble. Stamped on the back with European hallmarks as indicated. Pendant is just over an inch high with bail, and 1.25 inches wide. Chain is 17 inches long and permanently attached to the pendant. Stamped sterling as pictures. Lucky piece.