Manyara, Arusha
Merelani tanzanite mines (Tanzania)
Gem locality Documented siteProhibited, look only
What you could find
Reported finds from this ground.
Crystals and mineralsAlso reported: Blue-violet tanzanite (gem zoisite), plus green tsavorite and gem prehnite.
Photos via Wikimedia Commons: Stephanie Clifford from Arlington, VA, USA (CC BY 2.0).
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Why this spot
Graphite-bearing gneiss, only known tanzanite source
Merelani near Arusha is the sole tanzanite source; strictly controlled
Keep exploring nearby
More spots in this area.