Ethiopia yields rare copper-rich tourmaline
Ethiopia's rare copper-rich tourmaline gains global recognition as labs confirm its authenticity...
Ethiopia yields rare copper-rich tourmaline
E thiopia yields rare copper-rich tourmaline Copper-bearing tourmaline from an East African nation has been authenticated by two leading gemological laboratories, confirming the emergence of a new source for the coveted blue-green gemstone. Independent labs verify new deposit Earlier...
this year, reports of copper-rich gems from the region spread through trade circles. The findings led GIA and Gübelin Gem Lab to conduct separate analyses before releasing their conclusions. The Swiss laboratory first examined the material in May, detecting a...
