Wanda: Minas de Wanda amethyst mines, Misiones

Where: Southern Cone · South America · approx. -25.95, -54.58 (vicinity only)

Why this spot: Rockhounding locality: open-cut gem mines in Parana flood basalts on the bank of the Parana river, a fixture of the Iguazu tourist circuit since the 1970s

What turns up: amethyst, quartz crystals, agate, topaz-tinted quartz (tour purchases, guide-handed samples)

Access: Licensed / permit.

Private fee-tour mines (Tierra Colorada and Compania Minera Wanda): pay the entrance fee for a guided walk, buy specimens at the shop, no self-digging

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