Statements (25)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
quartz variety |
| gptkbp:category |
silicate mineral
|
| gptkbp:chemicalFormula |
SiO2
|
| gptkbp:cleavage |
none
|
| gptkbp:color |
transparent
|
| gptkbp:crystalSystem |
trigonal
|
| gptkbp:foundIn |
gptkb:Brazil
gptkb:Madagascar gptkb:United_States gptkb:Alps |
| gptkbp:fracture |
conchoidal
|
| gptkbp:hardnessMohs |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
rock crystal
|
| gptkbp:luster |
vitreous
|
| gptkbp:otherName |
clear quartz
|
| gptkbp:refractiveIndex |
1.544–1.553
|
| gptkbp:transparency |
transparent
|
| gptkbp:usedFor |
gptkb:jewelry
decorative objects optical instruments |
| gptkbp:bfsParent |
gptkb:Amethyst
gptkb:Sovereign's_Sceptre_with_Cross gptkb:Sceptre_of_Scotland |
| gptkbp:bfsLayer |
5
|