Ferrihydrit

Structural context

Ferrihydrite
Crystal System trigonalCrystal Class hexagonal scalenohedralSpace Group P-31c

Chemical context

Stoichiometric formulas

Ferrihydrite
mindat.org
  • March 13, 2023Fe3+10O14(OH)2Previously given as Fe3+5O3(OH)9.
IMA
  • March 13, 2023Fe3+10O14(OH)2
mineralogy.rocks
  • Aug. 30, 2022Fe3+10O14(OH)2

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • dark brown
  • yellow-brown
Color noteOriginal color note from the source
Dark brown, yellow-brown
StreakStreak entities, recognized using a custom trained NER model
  • yellow-brown
Streak noteOriginal streak note from the source
Yellow-brown
Transparency
Opaque