Assertion: brown zircon | /r/HasProperty | transformed into colorless or blue zircons
Facets:
value: by heating to 800 to 1000
type: TEMPORAL
value: through heat treatments
type: CAUSE
Source sentences:
text: Brown zircons can be transformed into colorless or blue zircons through heat treatments.
text: Common brown zircons can be transformed into colorless and blue zircons by heating to 800 to 1000