|
gptkbp:instanceOf
|
gptkb:granite
|
|
gptkbp:associatedMinerals
|
gptkb:biotite
quartz
plagioclase
|
|
gptkbp:category
|
inosilicate
|
|
gptkbp:chemicalFormula
|
(Ca,Na)2-3(Mg,Fe,Al)5(Al,Si)8O22(OH)2
|
|
gptkbp:cleavage
|
56 and 124 degrees
|
|
gptkbp:color
|
black
dark green
|
|
gptkbp:crystalSystem
|
monoclinic
|
|
gptkbp:discoveredBy
|
gptkb:Abraham_Gottlob_Werner
|
|
gptkbp:event
|
metamorphic rocks
igneous rocks
|
|
gptkbp:fracture
|
uneven
|
|
gptkbp:habit
|
fibrous aggregates
prismatic crystals
|
|
gptkbp:hardnessMohs
|
5
6
|
|
gptkbp:luster
|
vitreous
|
|
gptkbp:namedAfter
|
German: horn (horn) + blende (deceive)
|
|
gptkbp:opticalProperties
|
biaxial (-)
|
|
gptkbp:radioactive
|
non-radioactive
|
|
gptkbp:refractiveIndex
|
1.64–1.71
|
|
gptkbp:solubility
|
insoluble in water
|
|
gptkbp:specificGravity
|
2.9–3.4
|
|
gptkbp:streak
|
gray
|
|
gptkbp:subclassOf
|
gptkb:amphibole_group
|
|
gptkbp:tenacity
|
brittle
|
|
gptkbp:transparency
|
translucent to opaque
|
|
gptkbp:uses
|
rock identification
|
|
gptkbp:bfsParent
|
gptkb:Sanidine
gptkb:Amphibole
gptkb:Inosilicates
gptkb:Andesite
gptkb:Tremolite
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Hornblende
|