Muzo emerald mine

Where: Boyaca · South America · approx. 5.53, -74.1 (vicinity only)

Why this spot: Cretaceous black-shale hydrothermal

What turns up: The world's finest emeralds in calcite veins; also parisite, euclase, pyrite

Access: Prohibited / view only.

Working commercial emerald mine on tightly controlled concession; extremely restricted, buy from trade

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.