Judith Jack sterling silver marcasite black onyx bead necklace with a swirl pendant. The necklace measures 17 1/2" long. The beads measure 1/4" in diameter each. The string is knotted between each bead. The swirl pendant measures 1 1/2" x 1 5/8". It is signed with the J J logo of Judith Jack and sterling. The necklace has a spring ring clasp. Condition is good.