Preseli bluestone
E276876
Preseli bluestone is a type of spotted dolerite rock from the Preseli Hills in Wales, best known as the distinctive non-local stone used to form Stonehenge’s inner stone circle.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Preseli bluestone canonical | 1 |
| Preseli dolerite | 1 |
| Stonehenge bluestone arrangements | 1 |
| Stonehenge bluestone orthostats | 1 |
| Stonehenge bluestones | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2552504 — 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: Preseli bluestone Context triple: [Stonehenge, materialUsed, Preseli bluestone]
-
A.
Snettisham Torcs
Snettisham Torcs are a famous hoard of Iron Age gold, silver, and copper-alloy neck rings discovered near Snettisham in Norfolk, England, and associated with the ancient Iceni tribe.
-
B.
Coronation Stone
The Coronation Stone is an ancient block of stone in Kingston upon Thames traditionally associated with the crowning of several early English kings.
-
C.
Stiperstones
Stiperstones is a rugged hill range and nature reserve in Shropshire, England, known for its distinctive quartzite rock outcrops and rich wildlife.
-
D.
Triskelion of Mann
The Triskelion of Mann is the iconic three-legged symbol associated with the Isle of Man, prominently featured on its flag, coins, and official emblems.
-
E.
Stone of Destiny
The Stone of Destiny is an ancient symbol of Scottish monarchy and sovereignty, traditionally used in the coronation of Scottish and later British kings.
- 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: Preseli bluestone Target entity description: Preseli bluestone is a type of spotted dolerite rock from the Preseli Hills in Wales, best known as the distinctive non-local stone used to form Stonehenge’s inner stone circle.
-
A.
Snettisham Torcs
Snettisham Torcs are a famous hoard of Iron Age gold, silver, and copper-alloy neck rings discovered near Snettisham in Norfolk, England, and associated with the ancient Iceni tribe.
-
B.
Coronation Stone
The Coronation Stone is an ancient block of stone in Kingston upon Thames traditionally associated with the crowning of several early English kings.
-
C.
Stiperstones
Stiperstones is a rugged hill range and nature reserve in Shropshire, England, known for its distinctive quartzite rock outcrops and rich wildlife.
-
D.
Triskelion of Mann
The Triskelion of Mann is the iconic three-legged symbol associated with the Isle of Man, prominently featured on its flag, coins, and official emblems.
-
E.
Stone of Destiny
The Stone of Destiny is an ancient symbol of Scottish monarchy and sovereignty, traditionally used in the coronation of Scottish and later British kings.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
building stone
ⓘ
dimension stone ⓘ dolerite ⓘ igneous rock ⓘ spotted dolerite ⓘ |
| associatedWith |
Neolithic archaeology
ⓘ
megalithic monuments ⓘ |
| color |
blue-grey
ⓘ
dark grey ⓘ |
| country | United Kingdom ⓘ |
| culturalSignificance |
prehistoric ritual use
ⓘ
sacred landscape of Preseli Hills ⓘ |
| density | high ⓘ |
| formationProcess | intrusive igneous activity ⓘ |
| foundIn | outcrops in Preseli Hills ⓘ |
| geologicalAge |
Ordovician
ⓘ
Palaeozoic ⓘ |
| geologicalProvince |
Variscan orogeny belt
ⓘ
linked to:
Variscan orogeny
|
| hardness | high ⓘ |
| locatedIn |
British Isles
ⓘ
Pembrokeshire ⓘ Preseli Hills ⓘ Wales ⓘ |
| mineralComposition |
amphibole
ⓘ
opaque oxides ⓘ plagioclase feldspar ⓘ pyroxene ⓘ |
| notableFor |
long-distance prehistoric transport to Stonehenge
ⓘ
use at Stonehenge ⓘ |
| partOf | Mynydd Preseli ⓘ |
| quarriedAt |
Carn Goedog
ⓘ
Carn Menyn ⓘ Craig Rhos-y-felin ⓘ |
| rockType | mafic rock ⓘ |
| scientificStudyField |
archaeology
ⓘ
geochemistry ⓘ geology ⓘ petrology ⓘ |
| sourceAreaOf |
Stonehenge bluestones
ⓘ
linked to:
Preseli bluestone
|
| texture |
fine-grained
ⓘ
spotted ⓘ |
| transportHypothesis |
glacial transport by Pleistocene ice sheets
ⓘ
human transport from Preseli Hills to Stonehenge ⓘ |
| usedFor |
Stonehenge bluestone circle
ⓘ
linked to:
Stonehenge
Stonehenge bluestone horseshoe ⓘ
linked to:
Stonehenge
Stonehenge inner stone circle ⓘ
linked to:
Stonehenge
|
| usedIn | Stonehenge ⓘ |
| usedSince | Neolithic period ⓘ |
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: Preseli bluestone Description of subject: Preseli bluestone is a type of spotted dolerite rock from the Preseli Hills in Wales, best known as the distinctive non-local stone used to form Stonehenge’s inner stone circle.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Preseli bluestone
linked to: Preseli bluestone
Stonehenge Phase I ditch and bank
→
chronologicallyEarlierThan
→
Stonehenge bluestone arrangements
ⓘ
linked to: Preseli bluestone
linked to: Preseli bluestone