|
gptkbp:instanceOf
|
granite
|
|
gptkbp:birthstoneFor
|
May
|
|
gptkbp:category
|
gptkb:Beryl
|
|
gptkbp:chemicalFormula
|
Be3Al2(SiO3)6
|
|
gptkbp:clarity
|
Often included
|
|
gptkbp:cleavage
|
Imperfect
|
|
gptkbp:color
|
Green
|
|
gptkbp:component
|
gptkb:Oxygen
Aluminum
Beryllium
Silicon
|
|
gptkbp:crystalSystem
|
Hexagonal
|
|
gptkbp:discoveredBy
|
gptkb:Ancient_Egypt
|
|
gptkbp:etymology
|
From Greek 'smaragdos' meaning green gem
|
|
gptkbp:fracture
|
Conchoidal
|
|
gptkbp:hardnessMohs
|
7.5–8
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Emerald
|
|
gptkbp:inclusionType
|
Jardin
|
|
gptkbp:luster
|
Vitreous
|
|
gptkbp:market
|
High value
|
|
gptkbp:mythologicalRole
|
gptkb:Inca_civilization
gptkb:Cleopatra
|
|
gptkbp:notableSpecies
|
gptkb:Duke_of_Devonshire_Emerald
gptkb:Gachalá_Emerald
gptkb:Mogul_Mughal_Emerald
|
|
gptkbp:origin
|
gptkb:Afghanistan
gptkb:Brazil
gptkb:Colombia
gptkb:Pakistan
gptkb:Russia
gptkb:Zambia
|
|
gptkbp:refractiveIndex
|
1.565–1.602
|
|
gptkbp:relatedGemstone
|
gptkb:Morganite
Aquamarine
|
|
gptkbp:specificGravity
|
2.67–2.78
|
|
gptkbp:symbolizes
|
Love
Fertility
Rebirth
|
|
gptkbp:syntheticAvailable
|
Yes
|
|
gptkbp:tenacity
|
Brittle
|
|
gptkbp:traceElement
|
gptkb:Chromium
Vanadium
|
|
gptkbp:transparency
|
Transparent to opaque
|
|
gptkbp:treatment
|
Oiling
Resin filling
|
|
gptkbp:uses
|
gptkb:jewelry
Ornamental stone
|
|
gptkbp:bfsParent
|
gptkb:North_Carolina
|
|
gptkbp:bfsLayer
|
4
|