Statements (31)
Predicate | Object |
---|---|
gptkbp:instanceOf |
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 |
two directions at 56 and 124 degrees
|
gptkbp:color |
black
dark green |
gptkbp:crystalSystem |
monoclinic
|
gptkbp:discoveredIn |
1789
|
gptkbp:event |
metamorphic rocks
igneous rocks |
gptkbp:foundIn |
granite
schist diorite |
gptkbp:fracture |
uneven
|
gptkbp:hardnessMohs |
5-6
|
https://www.w3.org/2000/01/rdf-schema#label |
hornblende
|
gptkbp:luster |
vitreous
|
gptkbp:magnetType |
non-magnetic
|
gptkbp:namedAfter |
German: horn (horn) + blende (deceive)
|
gptkbp:opticalProperties |
biaxial (-)
|
gptkbp:radioactive |
non-radioactive
|
gptkbp:solubility |
insoluble in water
|
gptkbp:specificGravity |
2.9-3.4
|
gptkbp:streak |
colorless
|
gptkbp:subclassOf |
gptkb:amphibole_group
|
gptkbp:uses |
rock-forming mineral
|
gptkbp:bfsParent |
gptkb:Almandine
|
gptkbp:bfsLayer |
5
|