Bayan Obo rare earth mine
E664981
The Bayan Obo rare earth mine is the world’s largest known rare earth element deposit and a major source of iron and niobium, located in Inner Mongolia, China.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bayan Obo rare earth mine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7446305 — 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: Bayan Obo rare earth mine Context triple: [Baotou, nearbyResource, Bayan Obo rare earth mine]
-
A.
Grasberg mine
Grasberg mine is one of the world’s largest gold and copper mines, located in the highlands of Papua, Indonesia.
-
B.
Andoom Mine
Andoom Mine is a major bauxite mining operation near Weipa in Queensland, Australia, contributing significantly to the region’s aluminum ore production.
-
C.
Santa Bárbara mine
Santa Bárbara mine is a historic mercury mine near Huancavelica in Peru, once one of the most important sources of mercury for Spanish colonial silver mining.
-
D.
Panguna mine
Panguna mine is a large, now-closed open-cut copper and gold mine in Papua New Guinea that was once among the world’s biggest and played a central role in the Bougainville conflict.
-
E.
Falun Copper Mine
Falun Copper Mine is a historic Swedish mining site in Dalarna, once one of Europe’s most important copper producers and now preserved as a UNESCO World Heritage Site.
- 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: Bayan Obo rare earth mine Target entity description: The Bayan Obo rare earth mine is the world’s largest known rare earth element deposit and a major source of iron and niobium, located in Inner Mongolia, China.
-
A.
Grasberg mine
Grasberg mine is one of the world’s largest gold and copper mines, located in the highlands of Papua, Indonesia.
-
B.
Andoom Mine
Andoom Mine is a major bauxite mining operation near Weipa in Queensland, Australia, contributing significantly to the region’s aluminum ore production.
-
C.
Santa Bárbara mine
Santa Bárbara mine is a historic mercury mine near Huancavelica in Peru, once one of the most important sources of mercury for Spanish colonial silver mining.
-
D.
Panguna mine
Panguna mine is a large, now-closed open-cut copper and gold mine in Papua New Guinea that was once among the world’s biggest and played a central role in the Bougainville conflict.
-
E.
Falun Copper Mine
Falun Copper Mine is a historic Swedish mining site in Dalarna, once one of Europe’s most important copper producers and now preserved as a UNESCO World Heritage Site.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
iron mine
ⓘ
niobium mine ⓘ rare earth mine ⓘ |
| administrativeRegion |
Baotou City
NERFINISHED
ⓘ
Inner Mongolia Autonomous Region NERFINISHED ⓘ |
| associatedIndustry |
rare earth processing
ⓘ
steel production ⓘ |
| containsElement |
cerium
ⓘ
iron ⓘ lanthanum ⓘ light rare earth elements ⓘ neodymium ⓘ niobium ⓘ praseodymium ⓘ |
| continent | Asia ⓘ |
| country | China ⓘ |
| development | large-scale open-pit operations ⓘ |
| discoveredIn | 1927 ⓘ |
| distanceTo | approximately 120 km north of Baotou ⓘ |
| environmentalConcern |
radioactive waste from rare earth processing
ⓘ
tailings and dust pollution ⓘ |
| geologicalSetting | Proterozoic carbonatite-related deposit ⓘ |
| globalRanking | largest rare earth deposit by known reserves ⓘ |
| hostRock | dolomite ⓘ |
| initialCommodity | iron ⓘ |
| knownFor |
iron ore
ⓘ
niobium ⓘ rare earth elements ⓘ |
| locatedIn |
Baotou
NERFINISHED
ⓘ
Bayan Obo NERFINISHED ⓘ China ⓘ Inner Mongolia NERFINISHED ⓘ |
| nearCity | Baotou NERFINISHED ⓘ |
| operator | Baotou Steel Rare Earth Group NERFINISHED ⓘ |
| oreType |
bastnäsite
ⓘ
magnetite ⓘ monazite ⓘ |
| partOf | Chinese rare earth industry ⓘ |
| primaryCommodity | rare earth elements ⓘ |
| rareEarthProductionShare | major source of China’s rare earth production ⓘ |
| resourceType | open-pit mine ⓘ |
| secondaryCommodity |
iron
ⓘ
niobium ⓘ |
| significance | world’s largest known rare earth element deposit ⓘ |
| strategicImportance | key source of global rare earth supply ⓘ |
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: Bayan Obo rare earth mine Description of subject: The Bayan Obo rare earth mine is the world’s largest known rare earth element deposit and a major source of iron and niobium, located in Inner Mongolia, China.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.