Assertion: opal | /r/HasAspect | high water content
Facets:
value: very
type: DEGREE
Source sentences:
text: Being a hydrated stone of variable composition, opal can have a high water content, and this can lead to breakage from sudden changes in temperature (thermal shock).
text: There have been suggestions that opals from certain sources have a higher water content and are therefore more liable to craze or crack
text: - it has a very high water content.