|
gptkbp:instanceOf
|
gptkb:granite
|
|
gptkbp:associatedMinerals
|
gptkb:chalcopyrite
gptkb:pyrite
gptkb:pyrrhotite
magnetite
|
|
gptkbp:chemicalFormula
|
(Fe,Ni)9S8
|
|
gptkbp:cleavage
|
poor
|
|
gptkbp:color
|
bronze yellow
|
|
gptkbp:component
|
nickel ores
|
|
gptkbp:crystalSystem
|
isometric
|
|
gptkbp:discoveredBy
|
Joseph Barclay Pentland
|
|
gptkbp:discoveredIn
|
1856
|
|
gptkbp:economicImportance
|
primary ore of nickel
|
|
gptkbp:event
|
magmatic sulfide deposits
|
|
gptkbp:fracture
|
uneven
|
|
gptkbp:habit
|
massive
disseminated
granular
|
|
gptkbp:hardnessMohs
|
3.5–4
|
|
gptkbp:IMA_symbol
|
Ptd
|
|
gptkbp:ironContent
|
~30% by weight
|
|
gptkbp:luster
|
metallic
|
|
gptkbp:magnetType
|
non-magnetic
|
|
gptkbp:namedAfter
|
Joseph Barclay Pentland
|
|
gptkbp:nickelContent
|
~34% by weight
|
|
gptkbp:specificGravity
|
4.6–5.0
|
|
gptkbp:streak
|
dark gray
|
|
gptkbp:sulfurContent
|
~35% by weight
|
|
gptkbp:tenacity
|
brittle
|
|
gptkbp:transparency
|
opaque
|
|
gptkbp:bfsParent
|
gptkb:Chairman_Mao_Memorial_Hall
gptkb:Allende_meteorite
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
pentlandite
|