Europe

A mixture of tan to white opaque fragments of mollusk shells along with some purple and gray shell fragments (upper center) accompany the numerous dark gray to black sand grains of volcanic origin...

Reynisfjara Beach sand is a mixture of variably size black and gray grains along with a few white and red grains. This sand is of volcanic origin with a conspicuous absence of any fragments...

Variably sized light tan, dark tan and white small fragments of sea shells with occasional larger darker fragments characterize this beach that stretches for over 10 kilometers...

This sand is a mixture of white, tan, gray and black sand grains. All are smoothly worn from long exposure to wave action. White and tan grains are worn fragments of marine shells...

This sand is a mixture of white, tan, gray and black sand grains. White and tan grains are fragments of marine shells. Dark sand grains are fragments of basalt and other metamorphic rocks...

Djúpavík, a small village in the Northwest of Iceland in the Westfjords region, consists of seven houses, a hotel and the ruins of a herring factory. In the mid 1930’s Djúpavík...

The sand at Diamond Beach consists mostly of dark gray and black volcanic rock broken down by ocean and glacier rivers over centuries to form the black sand beach. White, tan and reddish sand grains also of...