Where: Andes · South America · approx. -17.9, -57.8 (vicinity only)
Why this spot: Rockhounding locality: the world's only commercial source of natural ametrine, a remote hard-rock mine near Laguna La Gaiba on the Brazilian border
What turns up: ametrine, amethyst, citrine (purchases in Santa Cruz de la Sierra; no site collecting)
Access: Restricted.
Private working mine with no public road access: occasional buyer and gem-trade visits are arranged by the operating company from Santa Cruz; realistic option is buying certified bolivianite from Santa Cruz de la Sierra dealers
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.