|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
gptkb:augite
gptkb:enstatite
gptkb:tremolite
gptkb:wollastonite
granite
olivine
|
|
gptkbp:birefringence
|
0.023–0.030
|
|
gptkbp:category
|
gptkb:pyroxene_group
|
|
gptkbp:chemicalFormula
|
CaMgSi2O6
|
|
gptkbp:cleavage
|
prismatic
|
|
gptkbp:color
|
brown
gray
white
light to dark green
|
|
gptkbp:crystalHabit
|
prismatic crystals
massive
granular
|
|
gptkbp:crystalSystem
|
monoclinic
|
|
gptkbp:discoveredBy
|
gptkb:René_Just_Haüy
|
|
gptkbp:event
|
metamorphic rocks
igneous rocks
|
|
gptkbp:fracture
|
uneven
|
|
gptkbp:hardnessMohs
|
5.5–6.5
|
|
gptkbp:hasVariant
|
gptkb:black_star_diopside
gptkb:chrome_diopside
gptkb:violane
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Diopside
|
|
gptkbp:IMA_symbol
|
gptkb:Di
|
|
gptkbp:location
|
gptkb:Canada
gptkb:Finland
gptkb:Italy
gptkb:Russia
gptkb:South_Africa
gptkb:USA
|
|
gptkbp:luster
|
vitreous
|
|
gptkbp:meltingPoint
|
1391°C
|
|
gptkbp:namedAfter
|
Greek words 'dis' (double) and 'opsis' (vision)
|
|
gptkbp:opticalProperties
|
biaxial (+)
|
|
gptkbp:pleochroism
|
weak
|
|
gptkbp:radioactive
|
non-radioactive
|
|
gptkbp:refractiveIndex
|
1.663–1.701
|
|
gptkbp:solubility
|
insoluble in water
|
|
gptkbp:specificGravity
|
3.2–3.4
|
|
gptkbp:streak
|
white
|
|
gptkbp:symmetry
|
C2/c
|
|
gptkbp:transparency
|
transparent to translucent
|
|
gptkbp:uses
|
granite
source of magnesium
metamorphic petrology indicator
|
|
gptkbp:bfsParent
|
gptkb:Grossular_garnet
|
|
gptkbp:bfsLayer
|
5
|