Virgin Valley opal fields
E91290
Virgin Valley opal fields are a renowned opal-mining area in Nevada, USA, famous for producing rare and vividly colored black fire opals.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Virgin Valley opal fields canonical | 5 |
| Royal Peacock Opal Mine | 1 |
| Virgin Valley opal deposits | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T768577 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Virgin Valley opal fields Context triple: [Virgin Valley black fire opal, associatedWithLocality, Virgin Valley opal fields]
-
A.
Orroral Valley
Orroral Valley is a scenic, historically significant valley in the Australian Capital Territory known for its natural landscapes, Aboriginal heritage sites, and former space tracking station.
-
B.
Namaqualand
Namaqualand is a semi-desert region in southwestern Africa famed for its spectacular seasonal wildflower displays and unique biodiversity.
-
C.
Lucerne Valley
Lucerne Valley is a sparsely populated desert community in the Mojave Desert of Southern California, known for its arid landscape, rural character, and proximity to the San Bernardino Mountains.
-
D.
Sunraysia region
The Sunraysia region is a major irrigated agricultural area in southeastern Australia, renowned for its production of citrus fruits, table grapes, and wine grapes.
-
E.
High Desert
High Desert is a sparsely populated, arid region in eastern and central Oregon known for its sagebrush plains, volcanic landscapes, and wide-open skies.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Virgin Valley opal fields Target entity description: Virgin Valley opal fields are a renowned opal-mining area in Nevada, USA, famous for producing rare and vividly colored black fire opals.
-
A.
Orroral Valley
Orroral Valley is a scenic, historically significant valley in the Australian Capital Territory known for its natural landscapes, Aboriginal heritage sites, and former space tracking station.
-
B.
Namaqualand
Namaqualand is a semi-desert region in southwestern Africa famed for its spectacular seasonal wildflower displays and unique biodiversity.
-
C.
Lucerne Valley
Lucerne Valley is a sparsely populated desert community in the Mojave Desert of Southern California, known for its arid landscape, rural character, and proximity to the San Bernardino Mountains.
-
D.
Sunraysia region
The Sunraysia region is a major irrigated agricultural area in southeastern Australia, renowned for its production of citrus fruits, table grapes, and wine grapes.
-
E.
High Desert
High Desert is a sparsely populated, arid region in eastern and central Oregon known for its sagebrush plains, volcanic landscapes, and wide-open skies.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geographic region
ⓘ
opal mining district ⓘ |
| access | by unpaved roads ⓘ |
| administrativeAuthority | U.S. Bureau of Land Management ⓘ |
| climate | semi-arid ⓘ |
| collectingRegulation | combination of private claims and public lands ⓘ |
| contains |
Bonanza Opal Mine
ⓘ
Rainbow Ridge Opal Mine ⓘ
linked to:
Bonanza Opal Mine
Royal Peacock Opal Mine ⓘ
linked to:
Virgin Valley opal fields
|
| country | United States of America ⓘ |
| economicActivity |
gemstone mining
ⓘ
recreational mining ⓘ |
| famousSince | early 20th century ⓘ |
| geologicalAge | Miocene ⓘ |
| geologicalSetting |
Miocene-age volcanic rocks
ⓘ
volcanic ash beds ⓘ |
| hasMiningActivity |
commercial opal mining
ⓘ
fee-dig opal collecting ⓘ |
| hasMiningMethod |
hand digging
ⓘ
open-pit mining ⓘ |
| hasNearbyFacility | Virgin Valley Campground ⓘ |
| hasNearbyFeature | Virgin Valley Warm Springs ⓘ |
| hasOpalType |
common opal
ⓘ
precious black fire opal ⓘ |
| hasResourceType | gemstone ⓘ |
| hostRock |
silicified volcanic ash
ⓘ
tuffaceous sediments ⓘ |
| isInTimeZone | Pacific Time Zone ⓘ |
| knownFor |
black fire opal production
ⓘ
precious opal deposits ⓘ vividly colored opals ⓘ |
| locatedIn |
Great Basin region
ⓘ
linked to:
Great Basin
Humboldt County, Nevada ⓘ Nevada ⓘ Virgin Valley ⓘ northwestern Nevada ⓘ |
| mineral |
black opal
ⓘ
fire opal ⓘ opal ⓘ |
| nearestSettlement | Denio, Nevada ⓘ |
| notableFeature |
high-quality play-of-color in opals
ⓘ
rare black opal specimens ⓘ |
| partOf |
Bureau of Land Management lands
ⓘ
Nevada opal-producing areas ⓘ |
| regionType | mining district ⓘ |
| state | Nevada ⓘ |
| tourism |
lapidary tourism site
ⓘ
rockhounding destination ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Virgin Valley opal fields Description of subject: Virgin Valley opal fields are a renowned opal-mining area in Nevada, USA, famous for producing rare and vividly colored black fire opals.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Virgin Valley opal fields
linked to: Virgin Valley opal fields