Tieshan Quarry, Yigong, Bomi Co., Nyingtri Prefecture (Linzhi Prefecture), Tibet, China

Gemstone List

Copyright © Jolyon & Katya Ralph 1993-2019. Site Map. Locality, gem & photograph data are the copyright of the individuals who submitted them. For more information please contact the . Gemdat.org is an online information resource dedicated to providing free gemmological information to all.