Statements (27)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:granite
|
| gptkbp:associatedMinerals |
gptkb:granite
corundum spinel |
| gptkbp:category |
inosilicate
|
| gptkbp:chemicalFormula |
CaMgSi2O6
|
| gptkbp:cleavage |
perfect in two directions
|
| gptkbp:color |
black
|
| gptkbp:containsMineral |
gptkb:pyroxene
|
| gptkbp:crystalSystem |
monoclinic
|
| gptkbp:effect |
gptkb:astronomy
|
| gptkbp:fracture |
uneven
|
| gptkbp:hardnessMohs |
5.5-6.5
|
| gptkbp:luster |
vitreous
|
| gptkbp:notableFeature |
four-rayed star
|
| gptkbp:refractiveIndex |
1.66-1.72
|
| gptkbp:source |
gptkb:India
gptkb:Myanmar gptkb:Sri_Lanka |
| gptkbp:specificGravity |
3.2-3.4
|
| gptkbp:starEffectColor |
white
|
| gptkbp:transparency |
opaque
|
| gptkbp:uses |
gptkb:building
gptkb:jewelry |
| gptkbp:bfsParent |
gptkb:Diopside
|
| gptkbp:bfsLayer |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
black star diopside
|