Assertion: black opal | /r/HasAspect | colour
Facets:
value: through to greens
type: LOCATION
Source sentences:
text: Very few black opals have colour extending through the full body.
text: Black opals may have all of these colors as well as purple.
text: Black opals (very rare and valuable) have a dark background and colours ranging from brilliant red through to greens, blues and purples.