Hi,
Salt again.
From what I have seen: often the center of the pyramid is collapsed.
This is true even if the water is allowed to evaporate upside down, as described below.
it is necessary to complete the observation by a relief highlighting to see it.
Some examples
One collapsed
Two quite well shaped
and a pretty one
Regards
Salt (NaCl) - II
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- Robert Berdan
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Re: Salt (NaCl) - II
Interesting images of salt showing the pyramid shape.
RB
RB