Statements (33)
| 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 |
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 |
| https://www.w3.org/2000/01/rdf-schema#label |
Hornblende
|
| 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:Andesite
|
| gptkbp:bfsLayer |
6
|