Digging for rare gems in Tanzania
Agence France-Presse
Jul. 11, 2008. 11:30 AM EST
Discovered only 40 years ago in the Merelani Hills in northern Tanzania, blue-violet tanzanite is... More »
Discovered only 40 years ago in the Merelani Hills in northern Tanzania, blue-violet tanzanite is one of the rarest gemstones in the world. But for those who rushed to the region hoping to make a fortune from the stone, its exploitation is not without risks. « Less
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