Minerals Found in Tanzania


Ruby is a deep red, translucent variety of the mineral corundum, highly valued as a precious stone. Rubies have long been valued as beautiful and rare gemstones.

Currently, Ruby is mainly mined by small scale miners in the following areas: Longido (Arusha), Umba River (Tanga), Matombo and Mahenge (Morogoro), Tunduru and Kitai (Ruvuma) and Winza (Dodoma)
The first and most popular use for rubies is as decoration, in rings, earrings, bracelets, and necklaces. Also, some of the first laser technology used artificial ruby crystals as the focusing source for the light.


© 2018 Tanzania Minerals Audit Agency (TMAA) All Rights Reserved.