trevorite
Sign in to saveTrevorite is a rare nickel iron oxide mineral belonging to the spinel group. It has the chemical formula NiFe3+2O4. It is a black mineral with the typical spinel properties of crystallising in the cubic system, black streaked, infusible and insoluble in most acids.
Key facts
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 5
- Mineral.name
- Trevorite
- Mineral.image
- Trevorite-Népouite-536294.jpg
- Mineral.caption
- Pale green nepouite appears to be far richer on this specimen, than the black with a green or brown tint trevorite. It is hard to distinguish the two.
- Mineral.category
- Oxide minerals Spinel group Spinel structural group
- Mineral.formula
- NiFe3+2O4
- Mineral.IMAsymbol
- Trv
- Mineral.strunz
- 4.BB.05
- Mineral.dana
- 7.2.2.5
- Mineral.system
- Cubic
- Mineral.class
- Hexoctahedral (mm) H-M symbol: (4/m 2/m)
- Mineral.symmetry
- Fdm (no. 227)
- Mineral.unit cell
- a = 8.41 Å; Z = 8
- Mineral.color
- Black, greenish hue
- Mineral.habit
- Granular to massive, rare as minute octahedra
- Mineral.cleavage
- None
- Mineral.fracture
- Uneven
via Wikipedia infobox
Wikidata facts
- Image
- Trevorite-Népouite-536294.jpg
Show 6 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.BB.05
- chemical formula
- NiFe³⁺₂O₄
- Nickel-Strunz 9th edition (updated 2009)
- 4.BB.05
- Commons category
- Trevorite
- IMA Mineral Symbol
- Trv
- Strunz 8th edition (series ID, updated)
- IV/B.01b
Sources (1)
via Wikidata · CC0
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Article
2 sectionsContents
- Discovery and occurrence
- References
Trevorite is a rare nickel iron oxide mineral belonging to the spinel group. It has the chemical formula NiFe3+2O4. It is a black mineral with the typical spinel properties of crystallising in the cubic system, black streaked, infusible and insoluble in most acids.
There is at least partial solid solution between trevorite and magnetite, with many magnetites from ultramafic rocks containing at least trace amounts of Ni. Fe2+ and Mg2+ may substitute for Ni in trevorite.