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Photographic gallery.  Thousands of particles under the microscope.

Kauai Sea Salt

These crystals were prepared from a saturated salt solution allowing the water to slowly evaporate. The red clay (Alaea) that gives the red Kauai salt its color can be seen at lower left center. The presence of this clay has an effect on how the salt crystallizes. The way the salt crystallizes affects the sensation in the mouth.

Transmitted Off Crossed Circular Polarized Light with Oblique Illumination


The red Kauai sea salt is a traditional Hawaiian salt, primarily sodium chloride, with a little clay (Alaea) mixed in.

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