Where: Hawaii · North America · approx. 19.46, -154.84 (vicinity only)
Why this spot: Black sand beach created by the 2018 Kilauea flows, rich in fresh olivine grains
What turns up: olivine grains, basalt, volcanic glass
Access: Gray area.
Hawaii law discourages removal of sand and rock from beaches; look and photograph rather than haul.
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.