Assertion: cristobalite | /r/Desires | higher temperatures
Facets:
Source sentences:
text: Contrary to the usual diagram for the conversion of silica to tridymite (the diagram shows cristobalite requiring higher temperatures), silica in the temperature regime of 867 and 1470 degrees C will most often convert to a disordered cristobalite phase favored by free-energy considerations rather than tridymite.