Top graphic: T. gibbosula and C. rustica shells found in layer 4c with the cave in Morocco, which were being beads from what's now referred to as the oldest jewelry on earth. Supply: A. Bouzouggar, INSAP, Morocco / The extreme hardness and brittleness of the materials built it extremely hard https://kameronyxurm.goabroadblog.com/30423767/the-definitive-guide-to-renaissance-bead-trade