Assertion: opal | /r/HasProperty | mixed with other gems
Facets:
Source sentences:
text: During the Middle Ages, an amulet of Opal, or one that contained Opals mixed with other gems, protected its wearer against faulty vision, while strengthening the mind and memory.
text: During the Middle Ages, an amulet of Opal, or one that contained Opals mixed with other gems, protected its wearer against faulty vision, while strengthening the mind and memory.