Where: San Luis Potosi · North America · approx. 23.13, -101.12 (vicinity only)
Why this spot: Tertiary CRD skarn
What turns up: Superb danburite, apophyllite, stilbite, sphalerite, calcite, selenite
Access: Gray area.
Active lead-zinc mine; specimens famously reach the market through miners. No casual entry.
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.