Assertion: chalcedony's color | /r/HasProperty | vivid
Facets:
value: to be a natural occurrence
type: CAUSE
value: in many cases
type: TEMPORAL
value: simply
type: DEGREE
Source sentences:
text: In many cases, the color is simply too vivid and intense to be a natural occurrence.
text: The color of fire opal can be as vivid as seen in the three stones shown here.