Williamson Mine (Mwadui mine; Mwaudi kimberlite pipe; Wilsons pipe), Mwadui, Shinyanga Region, Tanzania

Gemstone List

Copyright © Jolyon & Katya Ralph 1993-2021. 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.