Assertion: beryl's color | /r/HasProperty | dark blue
Facets:
value: as in maxixe
type: TEMPORAL
Source sentences:
text: The most valuable color is dark blue or perhaps a slightly greenish blue, but the richer and darker the blue the better.
text: Fe3+ ions produce golden-yellow color, and when both Fe2+ and Fe3+ are present, the color is a darker blue as in maxixe.