Salt (sodium chloride)
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Chemically, Salt is sodium chlride (NaCl).
As packaged (right), salt grains look like broken
and/or deformed cubes. When dissolved and allowed to recrytalize (below),
take on a distinct pyramid shape the outline of which
is sometimes faintly seen in the orginal "cubes". Though salt can certainly
be viewed with normal substage lighting, it looks more like salt and less like dirty ice when viewed under superstage
lighting. Note that all of these images are at 40X, but weaker solutions make smaller crystals and medium
concentrations produce much larger crystals.