|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
gptkb:Quartz
gptkb:Limonite
gptkb:Pyrite
Hematite
|
|
gptkbp:category
|
Oxide mineral
|
|
gptkbp:chemicalFormula
|
FeO(OH)
|
|
gptkbp:cleavage
|
Perfect on {010}
|
|
gptkbp:color
|
Brown
Reddish brown
Yellowish brown
|
|
gptkbp:crystalHabit
|
Acicular
Botryoidal
Radial aggregates
|
|
gptkbp:crystalSystem
|
Orthorhombic
|
|
gptkbp:Dana_classification
|
6.3.1.2
|
|
gptkbp:discoveredIn
|
1806
|
|
gptkbp:event
|
Sedimentary iron ore deposits
Weathering product of iron-bearing minerals
|
|
gptkbp:fracture
|
Uneven
|
|
gptkbp:habit
|
Massive
Fibrous
Prismatic crystals
Reniform
Stalactitic
|
|
gptkbp:hardnessMohs
|
5.0–5.5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Goethite
|
|
gptkbp:IMA_symbol
|
Gth
|
|
gptkbp:IMAStatus
|
Approved mineral
|
|
gptkbp:location
|
Hollertszug Mine, Herdorf, Siegerland, Rhineland-Palatinate, Germany
|
|
gptkbp:luster
|
Dull
Earthy
Adamantine
|
|
gptkbp:magnetType
|
Weakly magnetic after heating
|
|
gptkbp:namedAfter
|
gptkb:Johann_Wolfgang_von_Goethe
|
|
gptkbp:radioactive
|
Non-radioactive
|
|
gptkbp:solubility
|
Insoluble in water
Soluble in hydrochloric acid
|
|
gptkbp:specificGravity
|
3.3–4.3
|
|
gptkbp:streak
|
Brownish yellow
|
|
gptkbp:Strunz_classification
|
04.FE.10
|
|
gptkbp:symmetry
|
Pnma
|
|
gptkbp:tenacity
|
Brittle
|
|
gptkbp:transparency
|
Opaque
|
|
gptkbp:uses
|
gptkb:color
Iron ore
|
|
gptkbp:bfsParent
|
gptkb:Aventurine
|
|
gptkbp:bfsLayer
|
5
|