Editing Ice (section)

==Non-water==
{{main|Volatile (astrogeology)}}
The solid phases of several other volatile substances are also referred to as ''ices''; generally a volatile is classed as an ice if its melting or [[Sublimation (chemistry)|sublimation]] point lies above or around {{convert|100|K|C F}} (assuming standard atmospheric pressure). The best known example is [[dry ice]], the solid form of [[carbon dioxide]]. Its sublimation/deposition point occurs at {{convert|194.7|K|C F}}.<ref>{{Cite journal|last=Barber|first=C R|date=March 1966|title=The sublimation temperature of carbon dioxide|url=https://iopscience.iop.org/article/10.1088/0508-3443/17/3/312|journal=British Journal of Applied Physics|language=en|volume=17|issue=3|pages=391–397|doi=10.1088/0508-3443/17/3/312|bibcode=1966BJAP...17..391B|issn=0508-3443|access-date=2020-11-15|archive-date=2021-06-29|archive-url=https://web.archive.org/web/20210629110924/https://iopscience.iop.org/article/10.1088/0508-3443/17/3/312|url-status=live}}</ref>

A "magnetic analogue" of ice is also realized in some insulating magnetic materials in which the magnetic moments mimic the position of protons in water ice and obey energetic constraints similar to the Bernal-Fowler [[ice rules]] arising from the [[geometrical frustration]] of the proton configuration in water ice. These materials are called [[spin ice]].<ref>{{cite journal |last1=Ramirez |first1=A. P. |last2=Hayashi |first2=A. |last3=Cava |first3=R.J. |last4=Siddharthan |first4=R. |last5=Shastry |first5=B. S. |date=27 May 1999 |title=Zero-point entropy in 'spin ice' |journal=Nature |volume=399 |issue=3 |pages=333–335 |doi=10.1038/20619 |bibcode=1999Natur.399..333R }}</ref>