Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
natural glass
tektite |
| gptkbp:age |
about 15 million years
|
| gptkbp:category |
mineraloid
|
| gptkbp:chemicalFormula |
SiO2 + Al2O3
|
| gptkbp:cleavage |
none
|
| gptkbp:color |
gptkb:oil
brown green |
| gptkbp:crystalSystem |
amorphous
|
| gptkbp:density |
2.32–2.38 g/cm³
|
| gptkbp:discoveredIn |
Moldau River valley
|
| gptkbp:form |
meteorite impact
|
| gptkbp:fracture |
conchoidal
|
| gptkbp:hardnessMohs |
5.5–7
|
| https://www.w3.org/2000/01/rdf-schema#label |
moldavite
|
| gptkbp:luster |
vitreous
|
| gptkbp:mainDeposits |
gptkb:Austria
gptkb:Bohemia gptkb:Germany gptkb:Moravia |
| gptkbp:namedAfter |
Moldau River (Vltava)
|
| gptkbp:origin |
gptkb:Austria
gptkb:Czech_Republic gptkb:Germany |
| gptkbp:refractiveIndex |
1.48–1.54
|
| gptkbp:relatedEvent |
Nördlinger Ries impact
|
| gptkbp:transparency |
translucent
transparent |
| gptkbp:usedFor |
gptkb:jewelry
collecting |
| gptkbp:bfsParent |
gptkb:tektite
|
| gptkbp:bfsLayer |
7
|