Tanzanite:Tanzanian miner becomes overnight millionaire
A Tanzanian small-scale miner, who became an overnight millionaire in June for selling two rough Tanzanite stones valued at $3.4m (£2.6m), has sold another gem for $2m. The third discovery by Saniniu Laizer weighed 6.3kg (14lb).Tanzanite is only found in northern Tanzania and is used to make ornaments.It is one of the rarest gemstones on […]