Where: Eastern Region · Europe · approx. 65.09, -13.91 (vicinity only)
Why this spot: Basalt cavity
What turns up: Optical-clear Iceland spar (calcite) rhombs, the original 'Iceland spar' for polarizing optics
Access: Prohibited / view only.
The historic Helgustadir mine is a protected natural monument; collecting is prohibited to preserve the site.
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.