Charcas, San Luis Potosi: danburite mine town

Where: Mexico · North America · approx. 23.13, -101.11 (vicinity only)

Why this spot: Rockhounding locality: the world's most prolific danburite locality, a colonial silver-zinc mining town where glassy colorless danburite crystals come out of the active mine's workings

What turns up: eyes-only at the mine: danburite crystals, calcite, apophyllite via local purchase

Access: Restricted.

The mine is an active private operation closed to visitors; there is no legal surface collecting on company ground, so buy danburite and calcite from local miners and established dealers instead

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