Assertion: topaz's index | /r/HasProperty | ri
Facets:
Source sentences:
text: The refractive index (RI), measured using a refractometer, is an indication of the amount light rays are bent by a mineral.
text: The refractive index (RI), measured using a refractometer, is an indication of the amount light rays are bent by a mineral.
text: A high-quality polish can give light aquamarines such great brilliance they might be confused with higher refractive index (RI) gems.