Statements (41)
Predicate | Object |
---|---|
gptkbp:instanceOf |
mineral
|
gptkbp:associatedWith |
gptkb:hematite
limonite |
gptkbp:awards |
submetallic_to_dull
|
gptkbp:challenges |
5 to 5.5 on Mohs scale
|
gptkbp:chemicalFormula |
FeO(OH)
|
gptkbp:colors |
black
brown red yellow-brown |
gptkbp:formed |
weathering of iron-bearing minerals
|
https://www.w3.org/2000/01/rdf-schema#label |
goethite
|
gptkbp:locatedIn |
iron-rich environments
|
gptkbp:namedAfter |
gptkb:Johann_Wolfgang_von_Goethe
|
gptkbp:occursAnnually |
common in soil and sediment
|
gptkbp:productionCompany |
gptkb:Australia
gptkb:Brazil gptkb:Germany gptkb:South_Africa gptkb:United_States |
gptkbp:releaseYear |
known since ancient times
|
gptkbp:rootSystem |
orthorhombic
|
gptkbp:surface |
3.3 to 4.3
|
gptkbp:team |
none
|
gptkbp:trends |
yellow-brown
|
gptkbp:uses |
used in fertilizers
iron ore catalyst in chemical reactions used in batteries used in electronics soil amendment used in coatings used in water treatment used in glass manufacturing pigment in paints filler in plastics component in ceramics pigment in cosmetics source of iron for steel production used in pigments for inks |
gptkbp:visibility |
opaque
|