Sapphire
E583692
Sapphire is a precious gemstone variety of the mineral corundum, typically blue, valued for its hardness, brilliance, and use in fine jewelry and industrial applications.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T6278699 — 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: Sapphire Context triple: [Sapphire, name, Sapphire]
-
A.
Sapphire
Sapphire is a 1959 British crime drama film that explores racial tensions and prejudice in London through the investigation of a young woman's murder.
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B.
Sapphire
Sapphire is an American author best known for her novel "Push," which was adapted into the acclaimed film "Precious."
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C.
Stuart Sapphire
The Stuart Sapphire is a historic blue sapphire of royal provenance, prominently set in the British Imperial State Crown.
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D.
Peridot
Peridot is a small, green, technologically skilled Gem from the animated series "Steven Universe," known for her character arc from antagonistic Homeworld technician to quirky, loyal member of the Crystal Gems.
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E.
Aquamarine
Aquamarine is a blue to blue-green variety of the mineral beryl, prized as a gemstone for its clear, sea-colored appearance.
- 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: Sapphire Target entity description: Sapphire is a precious gemstone variety of the mineral corundum, typically blue, valued for its hardness, brilliance, and use in fine jewelry and industrial applications.
-
A.
Sapphire
Sapphire is an American author best known for her novel "Push," which was adapted into the acclaimed film "Precious."
-
B.
Sapphire
Sapphire is a 1959 British crime drama film that explores racial tensions and prejudice in London through the investigation of a young woman's murder.
-
C.
Stuart Sapphire
The Stuart Sapphire is a historic blue sapphire of royal provenance, prominently set in the British Imperial State Crown.
-
D.
Peridot
Peridot is a small, green, technologically skilled Gem from the animated series "Steven Universe," known for her character arc from antagonistic Homeworld technician to quirky, loyal member of the Crystal Gems.
-
E.
Aquamarine
Aquamarine is a blue to blue-green variety of the mineral beryl, prized as a gemstone for its clear, sea-colored appearance.
- F. None of above. chosen
Statements (80)
| Predicate | Object |
|---|---|
| instanceOf |
gemstone
ⓘ
mineral variety ⓘ variety of corundum ⓘ |
| belongsToMineralGroup | corundum ⓘ |
| canBeSynthetic | true ⓘ |
| canHaveColor |
black
ⓘ
colorless ⓘ green ⓘ orange ⓘ pink ⓘ purple ⓘ yellow ⓘ |
| colorIsCausedByImpurities | true ⓘ |
| commonColoringImpurity |
chromium
ⓘ
iron ⓘ magnesium ⓘ titanium ⓘ vanadium ⓘ |
| differsFromRubyBy | color definition within corundum group ⓘ |
| hasBlueColorDueTo | iron and titanium impurities ⓘ |
| hasBlueComplementaryGem | ruby (red corundum) NERFINISHED ⓘ |
| hasChemicalFormula | Al2O3 ⓘ |
| hasCleavage | none ⓘ |
| hasCrystalSystem |
hexagonal (trigonal subdivision)
ⓘ
trigonal ⓘ |
| hasFracture | conchoidal to uneven ⓘ |
| hasLuster | vitreous ⓘ |
| hasMineralClass | oxide mineral ⓘ |
| hasMohsHardness | 9 ⓘ |
| hasNotableVariety |
Kashmir sapphire
NERFINISHED
ⓘ
Padparadscha sapphire NERFINISHED ⓘ star sapphire ⓘ |
| hasOpticalUse |
UV optics
ⓘ
infrared optics ⓘ |
| hasPhenomenon |
asterism in star sapphires
ⓘ
color change in some sapphires ⓘ |
| hasRefractiveIndexRange | 1.76–1.77 ⓘ |
| hasSpecificGravityRange | 3.95–4.03 ⓘ |
| hasSymbolism |
loyalty
ⓘ
nobility ⓘ wisdom ⓘ |
| hasTenacity | tough ⓘ |
| hasTransparencyRange | transparent to opaque ⓘ |
| hasTypicalColor | blue ⓘ |
| isAllochromatic | true ⓘ |
| isAssociatedWithAnniversary |
45th wedding anniversary
ⓘ
65th wedding anniversary ⓘ |
| isBirthstoneFor | September ⓘ |
| isColorlessWhenPure | true ⓘ |
| isConsideredPreciousGemstone | true ⓘ |
| isHeatTreated | commonly to improve color and clarity ⓘ |
| isMinedIn |
Australia
NERFINISHED
ⓘ
Kashmir NERFINISHED ⓘ Madagascar NERFINISHED ⓘ Montana, United States NERFINISHED ⓘ Myanmar NERFINISHED ⓘ Sri Lanka NERFINISHED ⓘ Thailand NERFINISHED ⓘ |
| isPleochroic | true ⓘ |
| isSecondOnlyInHardnessTo | diamond ⓘ |
| isUsedIn |
LED substrates
ⓘ
bracelets ⓘ earrings ⓘ engagement rings ⓘ fine jewelry ⓘ industrial applications ⓘ necklaces ⓘ optical components ⓘ scientific instruments ⓘ scratch-resistant windows ⓘ semiconductor substrates ⓘ watch crystals ⓘ watches ⓘ |
| isValuedFor |
brilliance
ⓘ
color ⓘ hardness ⓘ |
| syntheticProductionMethod |
Czochralski process
NERFINISHED
ⓘ
Verneuil process NERFINISHED ⓘ flux growth ⓘ hydrothermal growth ⓘ |
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: Sapphire Description of subject: Sapphire is a precious gemstone variety of the mineral corundum, typically blue, valued for its hardness, brilliance, and use in fine jewelry and industrial applications.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.