Rarity:From one place on earth
The rare and precious gemstone tanzanite is found in only one place on earth, deep in the foothills of Mount Kilimanjaro in Tanzania, East Africa. The entire area mined is only four square kilometres wide.
1000 times rarer than Diamonds
Intense geological research has shown tanzanite's geology to be totally unique. The chance of it occurring outside the current production area (and its immediate vicinity) is less than a million to one.
At the current rate of mining, it is expected that the source of tanzanite will be depleted within 25 years, and many experts believe tanzanite will disappear within a generation.
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