Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:granite
|
| gptkbp:birthstoneFor |
September
|
| gptkbp:chemicalFormula |
Al2O3
|
| gptkbp:color |
black
blue gray purple pink |
| gptkbp:containsMineral |
corundum
|
| gptkbp:countryOfCitizenship |
gptkb:Australia
gptkb:Cambodia gptkb:Madagascar gptkb:Myanmar gptkb:Sri_Lanka gptkb:Tanzania gptkb:Thailand gptkb:United_States |
| gptkbp:crystalSystem |
trigonal
|
| gptkbp:cutStyle |
cabochon
|
| gptkbp:hardnessMohs |
9
|
| gptkbp:hasPhenomenon |
gptkb:astronomy
|
| gptkbp:luster |
vitreous
|
| gptkbp:notableSpecies |
gptkb:Star_of_India
gptkb:Star_of_Asia Black Star of Queensland |
| gptkbp:pleochroism |
strong
|
| gptkbp:refractiveIndex |
1.762–1.770
|
| gptkbp:transparency |
translucent
transparent |
| gptkbp:usedFor |
gptkb:jewelry
|
| gptkbp:bfsParent |
gptkb:Star_Sapphire_(modern_version)
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
Star Sapphire gem
|