Assertion: boulder opal | /r/HasProperty | unique
Facets:
value: almost completely
type: DEGREE
value: to the state of queensland
type: LOCATION
value: in appearance
type: OTHER
Source sentences:
text: Boulder opal is unique in appearance because it is a mixture of opal and host rock, generally iron stone.
text: This article is going to concentrate on the Boulder Opal, the unique native of Queensland, an Australian state famous for its tropical beaches, thick rainforests, red deserts and terrifying animals.
text: Boulder Opal is almost completely unique to the state of Queensland, Australia.