Statements (50)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Natural glass
|
| gptkbp:age |
34 million years (North American tektites)
700,000 years (Australasian tektites) |
| gptkbp:color |
Black
Brown Gray Green |
| gptkbp:component |
gptkb:Silicon_dioxide
Aluminum oxide Iron oxide Potassium oxide |
| gptkbp:composition |
Silica-rich glass
|
| gptkbp:density |
2.3–2.5 g/cm³
|
| gptkbp:discoveredBy |
Edward Charles Stirling (Australites, 1900)
|
| gptkbp:distinctiveFeature |
Obsidian
Impactite Volcanic glass |
| gptkbp:distribution |
Strewn field
|
| gptkbp:formedBy |
Meteorite impacts
|
| gptkbp:foundIn |
gptkb:Central_Europe
gptkb:Ivory_Coast gptkb:North_America gptkb:Australasia |
| https://www.w3.org/2000/01/rdf-schema#label |
Tektites
|
| gptkbp:magneticSusceptibility |
Very low
|
| gptkbp:meltingPoint |
~1700°C
|
| gptkbp:notableFor |
Australite
Bediasite Georgiaite Ivorite Moldavite |
| gptkbp:notableStrewnField |
Australasian strewn field
Central European strewn field Ivory Coast strewn field North American strewn field |
| gptkbp:origin |
Lunar origin (disproven)
Terrestrial origin |
| gptkbp:radioactive |
Low
|
| gptkbp:relatedTo |
Impact craters
|
| gptkbp:shape |
Spherical
Teardrop Disk Dumbbell |
| gptkbp:surface |
Pitted
Etched Grooved |
| gptkbp:usedFor |
gptkb:jewelry
Scientific study |
| gptkbp:bfsParent |
gptkb:Mount_Crenel
|
| gptkbp:bfsLayer |
6
|