|
gptkbp:instanceOf
|
gptkb:granite
|
|
gptkbp:associatedWith
|
gptkb:biotite
gptkb:pyroxene
gptkb:albite
gptkb:amphibole
olivine
anorthite
andesine
bytownite
|
|
gptkbp:birefringence
|
0.008–0.010
|
|
gptkbp:category
|
feldspar
|
|
gptkbp:chemicalFormula
|
(Ca,Na)(Al,Si)4O8
|
|
gptkbp:cleavage
|
perfect
|
|
gptkbp:color
|
blue
brown
gray
green
reddish
white
yellow
colorless
|
|
gptkbp:containsMineral
|
plagioclase
|
|
gptkbp:crystalSystem
|
triclinic
|
|
gptkbp:discoveredIn
|
1770
|
|
gptkbp:foundIn
|
gptkb:Australia
gptkb:Canada
gptkb:Finland
gptkb:Madagascar
gptkb:Mexico
gptkb:Russia
gptkb:United_States
|
|
gptkbp:fracture
|
uneven
|
|
gptkbp:habit
|
massive
granular
tabular crystals
|
|
gptkbp:hardnessMohs
|
6–6.5
|
|
gptkbp:luster
|
vitreous
|
|
gptkbp:namedAfter
|
gptkb:Labrador,_Canada
|
|
gptkbp:notableFor
|
labradorescence
|
|
gptkbp:occurredIn
|
metamorphic rocks
igneous rocks
|
|
gptkbp:opticalProperties
|
biaxial (+)
|
|
gptkbp:plagioclaseSeries
|
between albite and anorthite
|
|
gptkbp:refractiveIndex
|
1.559–1.573
|
|
gptkbp:specificGravity
|
2.68–2.72
|
|
gptkbp:streak
|
white
|
|
gptkbp:tenacity
|
brittle
|
|
gptkbp:transparency
|
transparent to translucent
|
|
gptkbp:usedAs
|
gptkb:granite
gptkb:decorative_stone
|
|
gptkbp:bfsParent
|
gptkb:Precious_Stone
gptkb:Feldspar
gptkb:Gem
|
|
gptkbp:bfsLayer
|
6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Labradorite
|