|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
gptkb:Olivine
gptkb:Pyroxene
Other feldspars
|
|
gptkbp:birefringence
|
0.013
|
|
gptkbp:category
|
gptkb:Feldspar
|
|
gptkbp:chemicalFormula
|
CaAl2Si2O8
|
|
gptkbp:cleavage
|
Perfect on {001}
|
|
gptkbp:color
|
Gray
White
Greenish
Reddish
|
|
gptkbp:component
|
gptkb:Anorthosite
|
|
gptkbp:crystalSystem
|
Triclinic
|
|
gptkbp:Dana_classification
|
76.1.3.1
|
|
gptkbp:diaphaneity
|
Transparent to translucent
|
|
gptkbp:discoveredBy
|
gptkb:Gustav_Rose
|
|
gptkbp:discoveredIn
|
1823
|
|
gptkbp:endMemberOf
|
gptkb:Plagioclase_feldspar
|
|
gptkbp:event
|
gptkb:Lunar_highlands
Igneous rocks
Metamorphic rocks
|
|
gptkbp:fracture
|
Uneven
|
|
gptkbp:habit
|
Granular
Massive
Tabular crystals
|
|
gptkbp:hardnessMohs
|
6-6.5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Anorthite
|
|
gptkbp:IMA_symbol
|
Ano
|
|
gptkbp:IMAStatus
|
Approved mineral
|
|
gptkbp:luster
|
Vitreous
|
|
gptkbp:meltingPoint
|
1553°C
|
|
gptkbp:mineralSymbol
|
Ano
|
|
gptkbp:nameOrigin
|
Greek 'an' (not) + 'orthos' (straight)
|
|
gptkbp:opticalProperties
|
Biaxial (-)
|
|
gptkbp:pleochroism
|
nan
|
|
gptkbp:radioactive
|
Non-radioactive
|
|
gptkbp:refractiveIndex
|
1.575–1.585
|
|
gptkbp:relatedGroup
|
gptkb:Plagioclase_series
|
|
gptkbp:solubility
|
Insoluble in water
|
|
gptkbp:specificGravity
|
2.75
|
|
gptkbp:streak
|
White
|
|
gptkbp:Strunz_classification
|
9.FA.35
|
|
gptkbp:symmetry
|
Space group P-1
|
|
gptkbp:tenacity
|
Brittle
|
|
gptkbp:transparency
|
Transparent to translucent
|
|
gptkbp:uses
|
Ceramics
Glass production
Geological research
|
|
gptkbp:bfsParent
|
gptkb:Albite
gptkb:Feldspar
|
|
gptkbp:bfsLayer
|
6
|