Where: Manyara · Africa · approx. -3.57, 36.97 (vicinity only)
Why this spot: Graphite-bearing gneiss, only known tanzanite source
What turns up: Blue-violet tanzanite (gem zoisite), plus green tsavorite and gem prehnite
Access: Prohibited / view only.
Only tanzanite locality on Earth; blocks are licensed and fenced (Block A-D), no public collecting, tightly regulated export
Open in Mudlark Map →
Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.
Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.