Herodsfoot mine, Cornwall

Where: England · Europe · approx. 50.42, -4.52 (vicinity only)

Why this spot: 19th-century lead-silver mine celebrated for the world's finest bournonite crystals

What turns up: bournonite, tetrahedrite, galena, quartz, siderite

Access: Permission required.

Dumps on private farmland; access only by landowner consent.

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