Nature & Environment
Happy GeoWeek!
...sand. But there's huge numbers of shells in here, forming bands as they go. Some are coarser-grained big bits, and some are much finer bits. But this would have been laid down probably in a sea. So, some of the shells that we have here, you'd even find on the beach if you went today. So you've got this beautiful big shell here, which is one that hasn't actually been...