|
gptkbp:instanceOf
|
gptkb:granite
|
|
gptkbp:associatedWith
|
gptkb:Friendship
Loyalty
Calmness
|
|
gptkbp:birthstoneFor
|
December
|
|
gptkbp:category
|
gptkb:Precious_stone
Semi-precious stone
|
|
gptkbp:chemicalFormula
|
Al2SiO4(F,OH)2
|
|
gptkbp:cleavage
|
Perfect
|
|
gptkbp:color
|
Blue
|
|
gptkbp:commonSources
|
gptkb:Brazil
gptkb:Nigeria
gptkb:Russia
gptkb:Sri_Lanka
gptkb:United_States
|
|
gptkbp:containsMineral
|
Silicate
|
|
gptkbp:crystalSystem
|
Orthorhombic
|
|
gptkbp:discoveredIn
|
Ancient times
|
|
gptkbp:fracture
|
Subconchoidal
|
|
gptkbp:hardnessMohs
|
8
|
|
gptkbp:luster
|
Vitreous
|
|
gptkbp:marketedAs
|
London Blue Topaz
Sky Blue Topaz
Swiss Blue Topaz
|
|
gptkbp:opticalProperties
|
Pleochroism
|
|
gptkbp:origin
|
Natural
Treated
|
|
gptkbp:pleochroismColor
|
Colorless
Pale blue
Greenish blue
|
|
gptkbp:refractiveIndex
|
1.609–1.643
|
|
gptkbp:specificGravity
|
3.49–3.57
|
|
gptkbp:symbolizes
|
Love
Peace
Good fortune
Affection
|
|
gptkbp:transparency
|
Transparent
|
|
gptkbp:treatment
|
gptkb:Heat
Irradiation
|
|
gptkbp:usedIn
|
gptkb:jewelry
Bracelets
Earrings
Necklaces
Rings
|
|
gptkbp:bfsParent
|
gptkb:The_State_of_Texas
|
|
gptkbp:bfsLayer
|
8
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Blue topaz
|