feroxyhyte
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Feroxyhyte is an oxide/hydroxide of iron, δ-Fe3+O(OH). Feroxyhyte crystallizes in the hexagonal system. Feroxyhyte forms as brown, rounded to concretionary masses. Feroxyhyte is an opaque, magnetic mineral with a yellow streak and a relative density of 4.2.
Key facts
- Mineral.name
- Feroxyhyte
- Mineral.image
- Feroxyhyte.jpg
- Mineral.caption
- Image of Feroxyhyte
- Mineral.category
- Oxide mineral
- Mineral.formula
- δ-Fe3+O(OH)
- Mineral.IMAsymbol
- Fox
- Mineral.strunz
- 4.FE.40
- Mineral.dana
- 06.01.04.04
- Mineral.unit cell
- a = 2.95, c = 4.56 [Å]; z = 1
- Mineral.molweight
- 88.85 g/mol
- Mineral.color
- Brown, yellow-brown
- Mineral.habit
- Concretionary, massive, nodular
- Mineral.system
- Hexagonal Unknown space group
- Mineral.streak
- Yellow
- Mineral.diaphaneity
- Opaque
- Mineral.gravity
- 4.31
- Mineral.density
- 4.2
- Mineral.opticalprop
- Uniaxial
via Wikipedia infobox
Wikidata facts
- Image
- Feroxyhyte.jpg
Show 5 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.FE.40
- Nickel-Strunz 9th edition (updated 2009)
- 4.FE.40
- IMA Mineral Symbol
- Fox
- chemical formula
- Fe³⁺O(OH)
- Commons category
- Feroxyhyte
via Wikidata · CC0
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Article
2 sectionsContents
- See also
- References
Feroxyhyte is an oxide/hydroxide of iron, δ-Fe3+O(OH). Feroxyhyte crystallizes in the hexagonal system. Feroxyhyte forms as brown, rounded to concretionary masses. Feroxyhyte is an opaque, magnetic mineral with a yellow streak and a relative density of 4.2.
It occurs in manganese-iron nodules on the Atlantic and Pacific Ocean floors. It is also found in the Baltic, White, and Kara Seas. Forms under high pressure conditions and reverts to goethite on exposure to surface conditions. It also occurs as cement and coatings on clasts in poorly drained soils and sediments, formed by the rapid oxidation of iron(II) oxide compounds.