Statements (43)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
mineral group
|
| gptkbp:abundance |
most abundant mineral group in Earth's crust
|
| gptkbp:chemicalFormula |
(K,Na,Ca)(Al,Si)4O8
|
| gptkbp:cleavage |
perfect
|
| gptkbp:color |
brown
gray white pink |
| gptkbp:contains |
gptkb:plagioclase_feldspar
gptkb:orthoclase gptkb:albite anorthite alkali feldspar microcline |
| gptkbp:crystalSystem |
monoclinic
triclinic |
| gptkbp:density |
2.55–2.76 g/cm³
|
| gptkbp:discoveredBy |
18th century
|
| gptkbp:event |
metamorphic rocks
sedimentary rocks igneous rocks |
| gptkbp:fracture |
uneven
|
| gptkbp:hardnessMohs |
6–6.5
|
| https://www.w3.org/2000/01/rdf-schema#label |
feldspar group
|
| gptkbp:luster |
vitreous
|
| gptkbp:mainConstituent |
granite
schist syenite |
| gptkbp:namedAfter |
German Feld (field) and Spat (a rock that does not contain ore)
|
| gptkbp:relatedTo |
gptkb:zeolite_group
quartz mica group |
| gptkbp:solubility |
insoluble in water
|
| gptkbp:streak |
white
|
| gptkbp:subclassOf |
tectosilicate minerals
|
| gptkbp:transparency |
transparent to translucent
|
| gptkbp:uses |
gptkb:ceramics
plastics glassmaking fillers in paints |
| gptkbp:weatheringProduct |
clay minerals
|
| gptkbp:bfsParent |
gptkb:Moonstone
|
| gptkbp:bfsLayer |
6
|