| Asia (Myanmar, Thailand, and Vietnam), Africa (Tanzania, Kenya, Zimbabwe, Nigeria, and Namibia, as well...a wide variety of colored stones from southern Tanzania; spessartine garnet from Nigeria and Namibia;...gem materials (i.e., emerald and other beryls, alexandrite and other chrysoberyls, ruby and sapphire, diamond...the country rather than to the specific mine or region. For more on the specific localities, consult tables...mines have prompted active exploration in this region (Schwarz, 1999). Emerald mining also continued |
