Bonanza Opal Mine
E408204
Bonanza Opal Mine is a well-known commercial opal mine in Nevada’s Virgin Valley, famed for producing high-quality black and precious opals.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Bonanza Opal Mine canonical | 3 |
| Rainbow Ridge Opal Mine | 3 |
| Royal Peacock Opal Mine | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4021615 — 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: Bonanza Opal Mine Context triple: [Virgin Valley opal fields, contains, Bonanza Opal Mine]
-
A.
Round Mountain Gold Mine
Round Mountain Gold Mine is a large open-pit gold mining operation in central Nevada known for its significant gold production.
-
B.
Reed Gold Mine
Reed Gold Mine is a historic site in North Carolina recognized as the location of the first documented gold discovery in the United States and the nation’s first major gold mining operation.
-
C.
Geita Gold Mine
Geita Gold Mine is one of Tanzania’s largest open-pit gold mines, operated by AngloGold Ashanti and located near the town of Geita in the country’s northwest.
-
D.
Crisson Gold Mine
Crisson Gold Mine is a historic gold mining site and tourist attraction in Dahlonega, Georgia, where visitors can tour old mining equipment and pan for gold.
-
E.
Eureka Mining District
The Eureka Mining District is a historic mining area in central Nevada known for its rich deposits of silver, lead, and other minerals that spurred significant 19th-century mining activity.
- 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: Bonanza Opal Mine Target entity description: Bonanza Opal Mine is a well-known commercial opal mine in Nevada’s Virgin Valley, famed for producing high-quality black and precious opals.
-
A.
Round Mountain Gold Mine
Round Mountain Gold Mine is a large open-pit gold mining operation in central Nevada known for its significant gold production.
-
B.
Reed Gold Mine
Reed Gold Mine is a historic site in North Carolina recognized as the location of the first documented gold discovery in the United States and the nation’s first major gold mining operation.
-
C.
Geita Gold Mine
Geita Gold Mine is one of Tanzania’s largest open-pit gold mines, operated by AngloGold Ashanti and located near the town of Geita in the country’s northwest.
-
D.
Crisson Gold Mine
Crisson Gold Mine is a historic gold mining site and tourist attraction in Dahlonega, Georgia, where visitors can tour old mining equipment and pan for gold.
-
E.
Eureka Mining District
The Eureka Mining District is a historic mining area in central Nevada known for its rich deposits of silver, lead, and other minerals that spurred significant 19th-century mining activity.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
commercial mine
ⓘ
opal mine ⓘ tourist attraction ⓘ |
| access | by unpaved road ⓘ |
| allows | public collecting of opals ⓘ |
| classification | fee-dig opal mine ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county | Humboldt County, Nevada ⓘ |
| geologicalSetting |
Virgin Valley opal deposits
ⓘ
linked to:
Virgin Valley opal fields
|
| hasFeature |
open-pit digging areas
ⓘ
screening and washing stations ⓘ |
| industry |
gemstone mining
ⓘ
mining ⓘ |
| knownFor |
black opals
ⓘ
high-quality opals ⓘ precious opals ⓘ |
| locatedIn |
Humboldt County, Nevada
ⓘ
Nevada ⓘ United States ⓘ
linked to:
United States of America
Virgin Valley ⓘ |
| materialType | precious opal-bearing volcanic ash layers ⓘ |
| mineral | opal ⓘ |
| near | Denio, Nevada ⓘ |
| notableFor |
colorful play-of-color opals
ⓘ
large specimen opals ⓘ |
| offers |
camping facilities
ⓘ
fee digging ⓘ pay-to-dig opal mining ⓘ |
| openingToPublic | seasonal ⓘ |
| operatesAs | privately owned mine ⓘ |
| partOf | Virgin Valley opal fields ⓘ |
| product |
black opal
ⓘ
fire opal ⓘ precious opal ⓘ |
| state | Nevada ⓘ |
| subjectTo |
Nevada mining regulations
ⓘ
United States federal land and mineral laws ⓘ |
| tourismType |
gemstone 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: Bonanza Opal Mine Description of subject: Bonanza Opal Mine is a well-known commercial opal mine in Nevada’s Virgin Valley, famed for producing high-quality black and precious opals.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Bonanza Opal Mine
linked to: Bonanza Opal Mine
linked to: Bonanza Opal Mine
linked to: Bonanza Opal Mine
linked to: Bonanza Opal Mine