Statements (31)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
|
| gptkbp:associatedWith |
gptkb:smoky_quartz
turquoise |
| gptkbp:birthstoneFor |
February
|
| gptkbp:chemicalFormula |
SiO2
|
| gptkbp:cleavage |
none
|
| gptkbp:color |
purple
|
| gptkbp:colorCause |
iron impurities
irradiation |
| gptkbp:crystalSystem |
trigonal
|
| gptkbp:foundIn |
geodes
alluvial deposits |
| gptkbp:fracture |
conchoidal
|
| gptkbp:hardnessMohs |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Ametista
|
| gptkbp:luster |
vitreous
|
| gptkbp:mainProducer |
gptkb:Brazil
gptkb:Uruguay gptkb:Zambia |
| gptkbp:nameOrigin |
Greek 'amethystos'
|
| gptkbp:pleochroism |
weak to moderate
|
| gptkbp:refractiveIndex |
1.544–1.553
|
| gptkbp:relatedGroup |
quartz
|
| gptkbp:specificGravity |
2.65
|
| gptkbp:streak |
white
|
| gptkbp:symbolizes |
protection
sobriety |
| gptkbp:transparency |
transparent
|
| gptkbp:usedAs |
gptkb:jewelry
|
| gptkbp:bfsParent |
gptkb:Perla-class_submarine
|
| gptkbp:bfsLayer |
7
|