Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
object
|
| gptkbp:age |
about 3 billion years
|
| gptkbp:controversy |
claimed to be out-of-place artifacts
|
| gptkbp:displayedAt |
gptkb:Klerksdorp_Museum
|
| gptkbp:foundIn |
gptkb:South_Africa
gptkb:Ottosdal pyrophyllite deposits |
| https://www.w3.org/2000/01/rdf-schema#label |
Klerksdorp Spheres
|
| gptkbp:material |
gptkb:goethite
gptkb:pyrite hematite |
| gptkbp:notableFor |
unusual appearance
misinterpretation as manufactured objects |
| gptkbp:scientificExplanation |
naturally formed concretions
|
| gptkbp:shape |
spherical
disc-shaped |
| gptkbp:size |
less than 10 cm
|
| gptkbp:studiedBy |
geologists
|
| gptkbp:surface |
grooves
ridges |
| gptkbp:bfsParent |
gptkb:Klerksdorp
|
| gptkbp:bfsLayer |
7
|