Statements (38)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:Iron_Age
|
| gptkbp:appearance |
gptkb:none
|
| gptkbp:chemical_formula |
Fe2 O3
|
| gptkbp:color |
gptkb:black
gptkb:red |
| gptkbp:difficulty |
5.5-6.5
|
| gptkbp:formed |
oxidation of iron-bearing minerals
|
| gptkbp:has_field |
weakly magnetic
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hematite
|
| gptkbp:is_found_in |
gptkb:Australia
gptkb:Brazil gptkb:China gptkb:India gptkb:United_States |
| gptkbp:luster |
metallic
earthy |
| gptkbp:notable_artifact |
gptkb:granite
gptkb:Ferengi gptkb:goethite calcite limonite |
| gptkbp:occurs_in |
sedimentary rocks
igneous rocks metamorphic rocks |
| gptkbp:season |
gptkb:red
|
| gptkbp:structure |
trigonal
|
| gptkbp:surface |
5.26
|
| gptkbp:uses |
gptkb:jewelry
iron ore pigments radiation shielding |
| gptkbp:varieties |
gptkb:painted_hematite
kidney ore martite specularite |
| gptkbp:bfsParent |
gptkb:Kentucky
gptkb:Alabama |
| gptkbp:bfsLayer |
4
|