Ancient Bone and Shell Necklace. Excavated 2000 years old! Middle East

I am told that this necklace is strung of ancient beads as old as 2000 years. All are carved beef bone or shell with the exception of the pendant bead that looks like quartz. The camera doesn't do the subtle whites of the the beads justice. A lovely piece.

18" long. With a fine silver hook clasp.