Assertion: mineral | /r/HasProperty | opal
Facets:
Source sentences:
text: These minerals include amphiboles, amethyst, andalusite, beryl (emerald), apatite, calcite, fluorite, gypsum, ilmenite, magnetite, monazite, niter, onyx, opal, quartz (agate), rutile, staurolite, tourmaline, turquoise, and wavellite.
text: These minerals include amphiboles, amethyst, andalusite, beryl (emerald), apatite, calcite, fluorite, gypsum, ilmenite, magnetite, monazite, niter, onyx, opal, quartz (agate), rutile, staurolite, tourmaline, turquoise, and wavellite.