Nephrite Jade 3x3-5mm Irregular Heishi Bead - 12-13 Inch Step Cut Stromatolites date back more than

Stromatolites date back more than three billion years and are the oldest known fossils

Stones will vary by inventory

though it also can occur in dark brown and golden colors

Unlike digital or electric calipers

Nephrite Jade 3x3-5mm Irregular Heishi Bead - 12-13 Inch Step Cut Stromatolites date back more thanNephrite is a dense, incredibly tough mineral aggregate belonging to the tremolite actinolite series. It is one of the two distinct minerals legally classified as "jade" (along with jadeite). Renowned for its historical significance and durability, it remains a highly prized material in fine jewelry, sculpture, and lapidary art worldwide.