Native Copper - 24 pc lot Grape Agate black-brown

black-brown

each entry combines a precise description with annotated photography to highlight a fossil's chief characteristics and distinguishing features

Chip bracelet featuring a rainbow of stone chips representing the seven chakras

BOTSET718c Botswana Agate Cabochon Lot features 10 cabochons

31 mm x 25 mm

Native Copper - 24 pc lot Grape Agate black-brownMichigan Native Copper Michigan's Keweenaw Peninsula is considered the most important locality in the world for pure native copper Mining began in 1845 and continued through 1982, and over 7 million tons of refined copper were recovered from the mines. At the turn of the 20th century it led the world in copper production and "Lake Copper" was the purity standard. The chemical symbol for copper is Cu. Size range is approximately 2 3 inches in length.