Tanzanite is one of the rarest gemstones on Earth and its appeal lies in a variety of hues, including green, red, purple, and blue. Tanzanite is only found in northern Tanzania and is used to make ornaments. The third discovery by Saniniu Laizer weighed 6.3 kg, and he sold the gem for $2 million. Saniniu … Continue reading Tanzanian Miner Who Became Overnight Millionaire Finds Another Rare Stone Worth $2 Million