Assertion: common opal | /r/HasProperty | black or beige matrix
Facets:
value: in the more opaque stones
type: LOCATION
Source sentences:
text: Andean Opal or Peruvian Opal - Common Opal from the Andes Mountains of Peru; translucent to opaque, soft pastel blue, blue-green or pink with a pearly sheen, sometimes cut to include the black or beige matrix in the more opaque stones.
text: Andean Opal or Peruvian Opal - Common Opal from the Andes Mountains of Peru; translucent to opaque, soft pastel blue, blue-green or pink with a pearly sheen, sometimes cut to include the black or beige matrix in the more opaque stones.