Hard, blue-white shell (?) found on a beach in Föhr, Germany - what species is this?
Found this shell on a beach in the northsea island of Foehr, Germany. It's hard, thick and not fragile at all.
Looks organic and somehow fresh.
Any marine biologists, shell collectors, or | beachcombers who can help ID this?
u/Big_Interview8854 — 10 days ago