Assertion: chalcedony | /r/CapableOf | occur as geode
Facets:
value: sometimes
type: TEMPORAL
value: very commonly
type: DEGREE
Source sentences:
text: Chalcedony also very commonly occurs as a mineral filling veins and openings, like geodes and this thunder egg.
text: It sometimes occurs in geodes, lining the cavity with mammilary blobs.