Assertion: zircon's index | /r/HasProperty | high refractive
Facets:
Source sentences:
text: Natural zircon is valued especially for its high refractive index and excellent fire.
text: Natural zircon is valued especially for its high refractive index and excellent fire.
text: As a gemstone, zircon is noted for its high refractive index and excellent fire.
text: Zircon has a high refractive index (1.92-2.01).
text: As a gemstone, zircon is noted for its high refractive index and excellent fire.
text: As a gemstone, zircon is noted for its high refractive index and excellent fire.
text: As a gemstone, zircon is noted for its high refractive index and excellent fire.