|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
gptkb:Fayalite
|
|
gptkbp:birefringence
|
0.035–0.040
|
|
gptkbp:category
|
Nesosilicate
|
|
gptkbp:chemicalFormula
|
Mg2SiO4
|
|
gptkbp:cleavage
|
Poor
|
|
gptkbp:color
|
Colorless
Green
Yellow
Olive-green
|
|
gptkbp:crystalSystem
|
Orthorhombic
|
|
gptkbp:Dana_classification
|
52.01.03.01
|
|
gptkbp:discoveredIn
|
1824
|
|
gptkbp:endMemberOf
|
Olivine solid solution series
|
|
gptkbp:event
|
Igneous rocks
Metamorphic rocks
|
|
gptkbp:fracture
|
Conchoidal
|
|
gptkbp:habit
|
Granular
Prismatic crystals
|
|
gptkbp:hardnessMohs
|
6.5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Forsterite
|
|
gptkbp:IMA_symbol
|
Frs
|
|
gptkbp:luster
|
Vitreous
|
|
gptkbp:namedAfter
|
Johann Forster
|
|
gptkbp:pleochroism
|
Weak
|
|
gptkbp:radioactive
|
Non-radioactive
|
|
gptkbp:refractiveIndex
|
1.63–1.69
|
|
gptkbp:relatedGroup
|
Olivine group
|
|
gptkbp:specificGravity
|
3.2
|
|
gptkbp:streak
|
White
|
|
gptkbp:Strunz_classification
|
9.AC.05
|
|
gptkbp:symmetry
|
Pbnm
|
|
gptkbp:transparency
|
Translucent
Transparent
|
|
gptkbp:uses
|
Gemstone (peridot)
Refractory material
|
|
gptkbp:bfsParent
|
gptkb:Olivine
|
|
gptkbp:bfsLayer
|
6
|