Tanzanite Mining News

Tanzanite miner gets bill as Tanzania cracks down on lost mineral revenues

Tanzanian gemstone miner Tanzanite One has agreed to pay compensation and overdue taxes to the government after violations led to losses in public revenues.

INFOGRAPHIC: The world's most valuable substances by weight

The world's most valuable substance? It sells for a cool $27 million per gram.

Gemstone miner Richland Resources' results affected by illegal mining

Unregulated miners in Tanzania are hurting operations and the extraction of high quality tanzanite gems.