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Alabandite, Tanzania; 2 1/2" Across

There is no doubt that the Merelani III Mine, Tanzania is one of the world's greatest gem mines. It has definitely produced some of the biggest and best tanzanite crystal in existance - some of them weighted several kilkograms. Unsual species have also been found in this gem mine. This include this sharply crystallized cluster of alabandite (manganese sulfide) crystals.


Matthew Webb Photo  

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