My understanding is that some minerals with layered crystal structures will reversibly absorb water with changes in humidity. Are there any minerals where this reversible absorption leads to a stacking-sequence change in the crystal structure?

By stacking-sequence change, I mean that the relative alignment of atomic layers shifts, such as in the image below.

enter image description here

  • $\begingroup$ Yes, but most of these are not considered reversible without heating. I'll let someone who knows more answer. $\endgroup$ – Eubie Drew Nov 1 '15 at 22:11

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