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Photographic gallery.  Thousands of particles under the microscope.

Ocean Beach Sand, Kwajalein

Macro Photograph (Click here for images at higher magnification and polarized light.)


Kwajalein is an island in the Pacific Ocean. It is part of the Ralik Chain of the Marshal Islands. This is an example of an atoll beach sand. It consists primarily of shell and coral fragments.

Significance in the Environment:

Characteristic Features:

Associated Particles:


Greenberg, Gary, A GRAIN OF SAND: NATURE'S SECRET WONDER, Voyageur Press, 2008.

Welland, Michael, SAND: THE NEVER ENDING STORY, University of California Press, 2009.
(Good Information on the microscopy of sand, Great site for more information on microscopy in general)
(Good Information on Sand with links to more information on sand),com_mediadb/task,play/idstr,Open-feeds_fsc_exploring_sedimentary_processes_fsc02_02_m4v/vv,-2/Itemid,97
(Brief, very informative video on what can be learned from the shape of a sand grain.)