Expedition to the New Ruby Mines in Winza, Tanzania
Sapphire Mining in Madagascar
A new source of rubies has been discovered in 2008 from Tanzania. This exciting appearance of a completely new ruby type has electrified the gemological world. Many large rubies with excellent clarity and vibrant color surprised the gem trade.
This 8th Issue of Contributions to Gemology takes us on an adventurous expedition into the source of these interesting gems, as well as to the source of sapphires in Madagascar.
GRS, Documentary DVD