Assertion: gypsum | /r/HasProperty | stable
Facets:
value: below 38 7 c
type: TEMPORAL
Source sentences:
text: gypsum is stable below 38 7 C, although when water is not
text: If, however, the addition of fresh water lowered the salinity of the sea water to a point where gypsum rather than anhydrite were the stable form of calcium sulfate, at least part of the anhydrite would be converted to gypsum.