Assertion: boulder opal | /r/HasProperty | mined in queensland
Facets:
value: from numerous localities in a zone
type: LOCATION
Source sentences:
text: Boulder opals (opals in concretionary ironstone) are mined in Queensland from numerous localities in a zone extending from the Eulo and Cunnamulla district in the south and northwest for a distance of over 700 km to Kynuna in the north.