Assertion: opal's play | /r/HasProperty | diminished
Facets:
Source sentences:
text: Boulder Opals change color as they are viewed from different angles and to a certain extent under different light sources although if you look at some opals under fluorescent the play-of-color can be diminished because the fluorescent lights do not possess the full spectrum of colors but they are not thought of as a Color-Change gemstone.
text: Opals change color as they are viewed from different angles but not really under different light sources although if you look at some opals under fluorescent the play-of-color can be diminished because the fluorescent lights do not possess the full spectrum of color, so the display by the opal will be missing some hues.