Where: England · Europe · approx. 53.34, -1.81 (vicinity only)
Why this spot: Carboniferous Limestone with mineralised veins
What turns up: Blue John fluorite (banded blue-purple-yellow ornamental fluorite), calcite and galena
Access: Prohibited / view only.
Blue John is worked only under licence within the show caves; collecting from the veins by the public is prohibited, buy worked pieces from the cavern shops.
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.