A small-scale miner in Tanzania has become an overnight millionaire after selling two rough Tanzanite stones – the biggest ever find in the country. Saniniu Laizer earned £2.4m ($3.3m) from the country’s mining ministry for the gemstones, which had a combined weight of 33 lb.
It is one of the rarest gemstones on Earth, and one local geologist estimates its supply may be entirely depleted within the next 20 years.
