Statements (55)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:Iron_Age
|
| gptkbp:associated_with |
gptkb:Silicone
clay minerals |
| gptkbp:characteristic |
birefringent
|
| gptkbp:chemical_formula |
Fe O(OH)
|
| gptkbp:color |
yellow-brown
|
| gptkbp:color_in_thin_section |
yellow to brown
|
| gptkbp:difficulty |
5 to 5.5 on Mohs scale
|
| gptkbp:discovery |
known since ancient times
|
| gptkbp:dissolved |
insoluble in water
|
| gptkbp:ecological_role |
important in biogeochemical cycles
|
| gptkbp:engine |
catalyst in chemical reactions
|
| gptkbp:formed |
weathering of iron-bearing minerals
|
| gptkbp:has_field |
weakly magnetic
|
| https://www.w3.org/2000/01/rdf-schema#label |
goethite
|
| gptkbp:is_found_in |
gptkb:educational_institutions
temperate regions arid regions coastal areas tropical regions geological surveys volcanic ash deposits glacial deposits museum exhibits subarctic regions research laboratories industrial sites riverbeds sedimentary deposits floodplain deposits bauxite deposits mineral veins hydrothermal deposits mineralogical collections iron-rich environments lake sediments iron-rich clays ironstone formations lateritic soils oxidized zones of sulfide deposits |
| gptkbp:is_visible_from |
opaque to translucent
|
| gptkbp:luster |
submetallic to dull
|
| gptkbp:named_after |
gptkb:Johann_Wolfgang_von_Goethe
|
| gptkbp:notable_artifact |
gptkb:Fuchsia
limonite |
| gptkbp:occurs_in |
found in soil and sedimentary rocks
|
| gptkbp:population_density |
4.3 to 4.4 g/cm³
|
| gptkbp:season |
yellow-brown
|
| gptkbp:structure |
orthorhombic
|
| gptkbp:thermal_properties |
decomposes at high temperatures
|
| gptkbp:uses |
iron ore
pigment in paints |
| gptkbp:uses_in_ceramics |
as a pigment
|
| gptkbp:bfsParent |
gptkb:Hematite
|
| gptkbp:bfsLayer |
5
|