|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
gptkb:Hornblende
gptkb:Olivine
Plagioclase
|
|
gptkbp:birefringence
|
0.018–0.030
|
|
gptkbp:category
|
Inosilicate
|
|
gptkbp:chemicalFormula
|
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
|
|
gptkbp:cleavage
|
Prismatic
|
|
gptkbp:color
|
Black
Brown
Dark green
|
|
gptkbp:crystalSystem
|
Monoclinic
|
|
gptkbp:diaphaneity
|
Translucent to opaque
|
|
gptkbp:discoveredIn
|
1792
|
|
gptkbp:event
|
Igneous rocks
Metamorphic rocks
|
|
gptkbp:fracture
|
Uneven
|
|
gptkbp:habit
|
Short prismatic crystals
|
|
gptkbp:hardnessMohs
|
5.5–6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Augite
|
|
gptkbp:IMA_symbol
|
gptkb:Aug
|
|
gptkbp:luster
|
Vitreous
|
|
gptkbp:namedAfter
|
Greek word augites (brightness)
|
|
gptkbp:opticalProperties
|
Biaxial (+)
|
|
gptkbp:pleochroism
|
Weak
|
|
gptkbp:refractiveIndex
|
1.65–1.78
|
|
gptkbp:relatedGroup
|
gptkb:Pyroxene
|
|
gptkbp:specificGravity
|
3.19–3.56
|
|
gptkbp:streak
|
Greenish white
|
|
gptkbp:tenacity
|
Brittle
|
|
gptkbp:transparency
|
Translucent to opaque
|
|
gptkbp:uses
|
Petrology reference mineral
|
|
gptkbp:website
|
https://www.mindat.org/min-419.html
|
|
gptkbp:bfsParent
|
gptkb:Andesite
|
|
gptkbp:bfsLayer
|
6
|