Assertion: garnet's color | /r/HasProperty | dark
Facets:
Source sentences:
text: The color is graded on its hue, tone, and saturation - hue for whether it is a warm or cool shade, tone for how light or dark the color is, and color saturation for the quality of being dull or a vivid blue.
text: In some rare cases, nitric acid can be used to lighten colors that are too dark.
text: Some darker and redder stones may have been dyed or heated to improve color, and in some rare cases, nitric acid can be used to lighten colors that are too dark.