Timeline for Can you explain why crystals form without thermodynamics?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Nov 9, 2014 at 10:27 | vote | accept | Gimelist | ||
| Sep 30, 2014 at 2:45 | comment | added | Nikos M. | +1 anna, but you know how i like thermodynamics arguments (and like to relate them to QM also) :) | |
| Sep 29, 2014 at 17:19 | history | edited | anna v | CC BY-SA 3.0 |
added 2042 characters in body
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| Sep 29, 2014 at 17:19 | comment | added | anna v | @CuriousOne You are right. I have edited | |
| Sep 29, 2014 at 17:08 | comment | added | anna v | I think the comment of @CuriousOne answers your question. see en.wikipedia.org/wiki/Calcite#Calcite_formation_processes | |
| Sep 28, 2014 at 21:35 | comment | added | Gimelist | So in that case, why would calcite crystals grow as either rhombohedra or scalenohedra, for example? | |
| Sep 28, 2014 at 20:02 | comment | added | CuriousOne | It's not quite that simple. Whether a material is amorphous or crystalline, or which crystal structure forms is a matter of thermodynamics. Mono-crystalline diamond, for instance, only forms under very high pressure (although small crystals can be made in the gas phase) and is thermodynamically meta-stable under normal conditions. Yes, quantum mechanics determines the possible crystal structures, but which structure is preferred, that depends on thermodynamic conditions. | |
| Sep 28, 2014 at 19:25 | history | answered | anna v | CC BY-SA 3.0 |