- Trevorite
Trevorite is a very rare nickeliferous mineral belonging to the
spinel group. It has thechemical formula NiFe3+O4. It is a blackmineral 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 fromultramafic rock s contaning at least trace amounts of Ni. Fe2+ and Mg2+ may substitute for Ni in trevorite.It is named after Major Tudor Gruffydd Trevor who was a mining inspector in
South Africa .References
*cite book|last=Deer|first=W. A.|coauthors=R. A. Howie, and J. Zussman|title=An Introduction to the Rock-forming Minerals|year=1992|publisher=Longman|location=Harlow, Essex|id=ISBN 0-470-21809-6|pages=pp. 559-563
* [http://webmineral.com/data/Trevorite.shtml webmineral.com entry]
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