Mr Jumanne Ngoma, the man who first discovered tanzanite, speaks during the commissioning of a 24.5km long wall now surrounding the Mirerani mining site in Simanjiro District, Manyara Region. PHOTO | JOSEPH LYIMO
What you need to know:
Here is the man who was dismissed offhandedly by government officials--in his many visits to Mining Department offices- when he tried to convince them that the gemstones he was carrying were precious.
