|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
feldspar
quartz
mica
|
|
gptkbp:birefringence
|
0.004–0.007
|
|
gptkbp:category
|
cyclosilicate
|
|
gptkbp:chemicalFormula
|
Be3Al2(Si6O18)
|
|
gptkbp:cleavage
|
imperfect
|
|
gptkbp:color
|
blue
green
red
white
yellow
pink
|
|
gptkbp:component
|
oxygen
aluminum
silicon
beryllium
|
|
gptkbp:crystalSystem
|
hexagonal
|
|
gptkbp:density
|
2.63–2.92 g/cm³
|
|
gptkbp:discoveredBy
|
antiquity
|
|
gptkbp:event
|
pegmatites
granitic rocks
mica schists
|
|
gptkbp:fracture
|
conchoidal
|
|
gptkbp:gemVariety
|
gptkb:jewelry
gptkb:goshenite
gptkb:heliodor
gptkb:morganite
gptkb:red_beryl
aquamarine
|
|
gptkbp:hardnessMohs
|
7.5–8
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Beryl
|
|
gptkbp:luster
|
vitreous
|
|
gptkbp:namedAfter
|
Greek word 'beryllos'
|
|
gptkbp:notableTransaction
|
gptkb:Brazil
gptkb:Colombia
gptkb:Madagascar
gptkb:Pakistan
gptkb:Russia
gptkb:United_States
|
|
gptkbp:pleochroism
|
weak
|
|
gptkbp:radioactive
|
non-radioactive
|
|
gptkbp:refractiveIndex
|
1.57–1.60
|
|
gptkbp:solubility
|
insoluble in water
|
|
gptkbp:streak
|
white
|
|
gptkbp:transparency
|
translucent
transparent
|
|
gptkbp:usedFor
|
granite
source of beryllium
|
|
gptkbp:bfsParent
|
gptkb:Emeralds
gptkb:Muscovite
gptkb:Emerald
|
|
gptkbp:bfsLayer
|
5
|