|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
quartz
hematite
limonite
|
|
gptkbp:category
|
oxide mineral
|
|
gptkbp:chemicalFormula
|
FeO(OH)
|
|
gptkbp:cleavage
|
perfect on {010}
|
|
gptkbp:color
|
brown
reddish-brown
yellowish-brown
|
|
gptkbp:component
|
limonite
|
|
gptkbp:crystalSystem
|
orthorhombic
|
|
gptkbp:Dana_classification
|
04.FD.10
|
|
gptkbp:diaphaneity
|
opaque
|
|
gptkbp:discoveredIn
|
1806
|
|
gptkbp:event
|
iron ore deposits
|
|
gptkbp:foundIn
|
sedimentary rocks
bog iron ores
hydrothermal deposits
laterite soils
|
|
gptkbp:fracture
|
splintery
|
|
gptkbp:habit
|
prismatic crystals
massive
stalactitic
reniform
|
|
gptkbp:hardnessMohs
|
5.0–5.5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
goethite
|
|
gptkbp:IMA_symbol
|
Gth
|
|
gptkbp:luster
|
dull
submetallic
|
|
gptkbp:magnetType
|
weakly magnetic after heating
|
|
gptkbp:namedAfter
|
gptkb:Johann_Wolfgang_von_Goethe
|
|
gptkbp:oxidationStates
|
Fe3+
|
|
gptkbp:relatedTo
|
gptkb:akaganeite
gptkb:feroxyhyte
gptkb:lepidocrocite
|
|
gptkbp:solubility
|
insoluble in water
|
|
gptkbp:specificGravity
|
3.3–4.3
|
|
gptkbp:streak
|
brownish yellow
|
|
gptkbp:Strunz_classification
|
04.FE.10
|
|
gptkbp:tenacity
|
brittle
|
|
gptkbp:transparency
|
opaque
|
|
gptkbp:uses
|
gptkb:color
gptkb:iron_ore
|
|
gptkbp:bfsParent
|
gptkb:Fe
gptkb:Appalachian_region
|
|
gptkbp:bfsLayer
|
5
|