Assertion: zircon | /r/HasProperty | recognized as official december birthstone
Facets:
value: alongside turquoise
type: OTHER
value: alongside tanzanite
type: LOCATION
value: since the early 1950s
type: TEMPORAL
Source sentences:
text: Since the early 1950s, zircon has been recognized as an official December birthstone, alongside turquoise and tanzanite.