Italy

Conero’s Two Sisters beach consists primarily of large limestone sand grains formed from marine sediment during the Jurassic period...

In terms of geological time, Elba Island is young with variable topographical features. Highly variably sized sand grains originate from geological activity 50 million years ago...

San Fruttuoso beach is a mixture of larger and small sand grains reflecting the minerals of the adjacent Portofino mountainous terrain with occasional biogenic sand grains...