Assertion: silica's structure | /r/HasProperty | structured
Facets:
value: as forms
type: MANNER
value: as cristobalite
type: OTHER
value: as the tridymite
type: OTHER
value: comparatively open
type: DEGREE
Source sentences:
text: The quartz modifications have relatively close-packed structures, and high density, where-as the tridymite and cristobalite forms are comparatively open structured.