Contents

Iron ochre

Iron ochre
General
Category	Mineral

It has been suggested that this article be merged into Ochre. (Discuss) Proposed since March 2024.

Iron ochreoriron ocher (Ancient Greek: ὠχρός, pale yellow, orange) — at least three iron ore minerals,^[1]: 134 common abrasives and pigments with a red-brown or brown-orange hue and the powdery consistency of ocher, were known under such a trivial name. The term “iron ocher” was primarily used among mineral collectors, geologists, miners and representatives of related craft professions. It may refer to:

• Iron ochre or hematite^[2]: 85 — Fe₂O₃,^[3]: 212 a widespread iron mineral, one of the most important iron ores;
• Iron ochre or limonite^[2]: 85 — Fe₂O₃·Н₂О,^[4]: 30 a mixture of secondary natural minerals, iron oxide hydrates;
• Iron ochre or goethite^[4]: 30 — α-FeO(OH), a product of weathering of ores, a secondary iron mineral, the main component of limonite, is part of brown iron ores;
• Iron ochre, brown iron ocherorlepidocrocite — γ-FeO(OH),^[5]: 236 a secondary mineral, a product of the oxidation of iron ore minerals, found in brown iron ores;
• Iron ochre or ferric oxide^[3]: 212 — Fe₂O₃ (oxidesofiron), which also occurs naturally as the mineral magnetite;
• Iron ochre or ferrihydrite^[6]: 338 — Fe₂O₃·0.5H₂O, is a widespread hydrous ferric oxyhydroxide mineral at the Earth's surface;

Gallery[edit]

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  Hematite
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  Limonite
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  Goethite
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  Lepidocrocite
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  Ferric oxide
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  Ferrihydrite

References[edit]

See also[edit]

• Ochre
• Ochre (disambiguation)
• Iron (disambiguation)
• Iron(III) oxide
• List of inorganic pigments
• Red pigments
• List of colors
• Yellow

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