Assertion: opal's water content | /r/HasProperty | high
Facets:
value: very
type: DEGREE
value: as 10 wt%
type: OTHER
Source sentences:
text: Owing to its high water content, fire opal is rather delicate and should be protected from heat and prolonged exposure to strong light, to avoid drying and cracking.
text: Water content may be as high as 10 wt%.
text: - it has a very high water content.
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).