Small Twist HoopsPrehistoric mammoth ivory small puffed rope hoop earrings are hand carved and set with either solid 14kt gold or rhodium plated sterling silver post backs and clutches. Approximately 20mm twist hoop height. Prehistoric woolly mammoth ivory is found by chance in the cold northern regions of Alaska, Canada, Russia, and Siberia. Fossil tusks may range in age from 10,000 to 200,00 years, an natural colors vary depending upon what minerals the tusk laid