Ruby (gemstone)
E916415
Ruby is a precious red gemstone, a variety of the mineral corundum, prized for its vivid color, hardness, and use in fine jewelry throughout history.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Ruby (gemstone) canonical | 1 |
| Ruby (given name or gemstone) (uncertain/etymological) | 1 |
| pigeon’s blood ruby | 1 |
| ruby (red corundum) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11277981 — 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: Ruby (gemstone) Context triple: [Rubis-class nuclear attack submarines, namedAfter, Ruby (gemstone)]
-
A.
Amethyst
Amethyst is a fun-loving, shape-shifting Crystal Gem from the animated series "Steven Universe," known for her rebellious attitude, messy habits, and deep emotional growth.
-
B.
Garnet
Garnet is a powerful, stoic fusion Gem and one of the main Crystal Gems who protects Earth in the animated series "Steven Universe."
-
C.
Garnet
Garnet is the surname of Henry Highland Garnet, a prominent 19th-century African American abolitionist, minister, and orator.
-
D.
Garnet
Garnet is the given name of Garnet Wolseley, 1st Viscount Wolseley, a prominent 19th-century British Army field marshal and military reformer.
-
E.
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.
- 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: Ruby (gemstone) Target entity description: Ruby is a precious red gemstone, a variety of the mineral corundum, prized for its vivid color, hardness, and use in fine jewelry throughout history.
-
A.
Amethyst
Amethyst is a fun-loving, shape-shifting Crystal Gem from the animated series "Steven Universe," known for her rebellious attitude, messy habits, and deep emotional growth.
-
B.
Garnet
Garnet is a powerful, stoic fusion Gem and one of the main Crystal Gems who protects Earth in the animated series "Steven Universe."
-
C.
Garnet
Garnet is the given name of Garnet Wolseley, 1st Viscount Wolseley, a prominent 19th-century British Army field marshal and military reformer.
-
D.
Garnet
Garnet is the surname of Henry Highland Garnet, a prominent 19th-century African American abolitionist, minister, and orator.
-
E.
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.
- F. None of above. chosen
Statements (58)
| Predicate | Object |
|---|---|
| instanceOf |
gemstone
ⓘ
variety of corundum ⓘ |
| associatedWith | corundum family ⓘ |
| belongsToGroup | corundum gemstones ⓘ |
| birthstoneFor | July ⓘ |
| chemicalFormula | Al2O3 ⓘ |
| chromophoreElement | chromium ⓘ |
| color | red ⓘ |
| commonTreatment | heat treatment ⓘ |
| crystalSystem | trigonal ⓘ |
| distinguishedBy | red body color ⓘ |
| distinguishedFrom |
red garnet
ⓘ
red spinel ⓘ sapphire ⓘ |
| fluorescenceColor | red ⓘ |
| fluorescesUnder | ultraviolet light ⓘ |
| historicallyFamousLocality |
Burma
ⓘ
linked to:
Myanmar
Mogok Valley ⓘ |
| historicalMisidentificationWith | red spinel in crown jewels ⓘ |
| luster | vitreous ⓘ |
| majorSourceCountry |
Madagascar
ⓘ
Mozambique ⓘ Myanmar ⓘ Sri Lanka ⓘ Thailand ⓘ |
| mineralClass | oxide mineral ⓘ |
| MohsHardness | 9 ⓘ |
| notableUse | first working laser in 1960 ⓘ |
| phenomenon |
asterism
ⓘ
fluorescence ⓘ |
| pleochroism | distinct ⓘ |
| possibleTreatment | fracture filling ⓘ |
| primaryColorCause | Cr3+ substituting for Al3+ in corundum lattice ⓘ |
| refractiveIndex | 1.762–1.770 ⓘ |
| specificGravity | 3.97–4.05 ⓘ |
| symbolism |
love
ⓘ
passion ⓘ power ⓘ vitality ⓘ |
| syntheticProductionMethod |
flame fusion
ⓘ
flux growth ⓘ hydrothermal growth ⓘ |
| tradeTerm |
pigeon’s blood ruby
ⓘ
linked to:
Ruby (gemstone)
|
| tradeTermRefersTo | highly saturated, pure red color with slight blue tone ⓘ |
| traditionalAnniversary | 40th wedding anniversary ⓘ |
| transparency | transparent to translucent ⓘ |
| typicalInclusions | rutile needles ⓘ |
| usedHistoricallyIn |
religious artifacts
ⓘ
royal regalia ⓘ |
| usedIn |
bracelets
ⓘ
earrings ⓘ fine jewelry ⓘ necklaces ⓘ rings ⓘ |
| usedInTechnology | solid-state lasers ⓘ |
| valuedFor |
durability
ⓘ
rarity ⓘ vivid red color ⓘ |
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: Ruby (gemstone) Description of subject: Ruby is a precious red gemstone, a variety of the mineral corundum, prized for its vivid color, hardness, and use in fine jewelry throughout history.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ruby (gemstone)
linked to: Ruby (gemstone)
linked to: Ruby (gemstone)