Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
|
| gptkbp:alternativeName |
gptkb:Blue_John
|
| gptkbp:chemicalFormula |
CaF2
|
| gptkbp:color |
blue
purple |
| gptkbp:composition |
calcium fluoride
|
| gptkbp:features |
banded blue-purple coloration
|
| gptkbp:foundIn |
gptkb:United_Kingdom
Derbyshire |
| https://www.w3.org/2000/01/rdf-schema#label |
Derbyshire Blue John
|
| gptkbp:miningStarted |
18th century
|
| gptkbp:notableFor |
gptkb:Treak_Cliff_Cavern
gptkb:Blue_John_Cavern |
| gptkbp:rarity |
rare
|
| gptkbp:type |
gptkb:fluorite
|
| gptkbp:usedFor |
gptkb:jewelry
ornamental objects |
| gptkbp:bfsParent |
gptkb:Buxton_Museum_and_Art_Gallery
|
| gptkbp:bfsLayer |
7
|