Formula: FeO(OH).nH2O
Hardness: 4-5.5
Description: Limonite is the general term for hydrous ferric iron oxide minerals. Limonite does not form crystals and can have a yellow to brown streak.
Specimen number: U053


  • Title: Limonite streak
  • Type: Mineral
  • Rights: Geoscience Australia / CC-BY 4.0
  • Photographer: Chris Fitzgerald

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