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Photographic gallery.  Thousands of particles under the microscope.
Sand, Kalapana Beach, Hawaii, Hawaii

Sand, Kalapana Beach, Hawaii, Hawaii

This sand sample was from a set of three sands purchased as part of a souvenir from the big island of Hawaii. It is primarily obsidian with some olivine crystal growth inside the grains.

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


Significance in the Environment:

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Associated Particles: