|
gptkbp:instanceOf
|
mineral group
|
|
gptkbp:category
|
inosilicate
|
|
gptkbp:chemicalFormula
|
XY(Si,Al)2O6
|
|
gptkbp:cleavage
|
prismatic
|
|
gptkbp:cleavageAngle
|
~90 degrees
|
|
gptkbp:color
|
black
brown
gray
green
white
|
|
gptkbp:containsElement
|
gptkb:gallium
gptkb:scandium
iron
oxygen
zinc
aluminum
cobalt
nickel
calcium
manganese
magnesium
sodium
rare earth elements
silicon
titanium
lithium
vanadium
chromium
|
|
gptkbp:crystalSystem
|
monoclinic
orthorhombic
|
|
gptkbp:density
|
3.2–4.0 g/cm³
|
|
gptkbp:event
|
metamorphic rocks
igneous rocks
|
|
gptkbp:hardnessMohs
|
5
6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
pyroxene
|
|
gptkbp:luster
|
vitreous
dull
|
|
gptkbp:namedFor
|
gptkb:René_Just_Haüy
|
|
gptkbp:nameOrigin
|
Greek: 'pyro' (fire) and 'xenos' (stranger)
|
|
gptkbp:notableMember
|
gptkb:augite
gptkb:diopside
gptkb:enstatite
gptkb:ferrosilite
gptkb:hedenbergite
gptkb:jadeite
gptkb:kosmochlor
gptkb:pigeonite
spodumene
|
|
gptkbp:streak
|
white
|
|
gptkbp:transparency
|
opaque
translucent
transparent
|
|
gptkbp:uses
|
gemstone (jadeite, spodumene)
geological indicator
|
|
gptkbp:bfsParent
|
gptkb:Serpentine
gptkb:Bowen's_reaction_series
|
|
gptkbp:bfsLayer
|
5
|