It has to have a volcano, be rich in topaz ryolite, in addition to it has to cool at the right temperature so gaps can form and Beryllium reacts with water forming the crystals. It has to have VERY specific conditions for it to form and takes a very long time making it very rare.
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I think it has something to do with their polar-nonpolar makeup. They have a polar head and a nonpolar tail. Only the polar side bonds with water, so they form two layers so that the polar sides can stick out and bond with the water, while the nonpolar tails can face each other. Imagine this:
p------n n------p
p------n n------p
And outside the double layer are water molecules bonding with the polar part:
wwww p------n n------p wwww
<span>wwww p------n n------p wwww
</span>
it means ur diff lollllll
:)
Explanation: