Native American Turquoise Heishi ChokerThis turquoise heishi necklace features teardrop amber beads. Heishi is the oldest form of jewelry in North America. The word itself means shell, but describes a method of crafting that dates back 6000 BCE. It is attributed to the Kewa people, formerly known as the Santo Domingo Indians, one of the Rio Grande Pueblos in Northern New Mexico. Santo Domingo is located near the original Cerrillos turquoise mines, and the indigenous people of this tribe