Where it forms, where it's found
- Type locality
- South Neptune Island
- South Australia
- Australia
-35.3333°, 136.1167°
30recorded occurrences
Varieties
Physical
Optical
- Optical type
- Uniaxial
- Pleochroism
- Weak
very weak in reds
- Notes
n = ∼2.62
Crystallography
- Space group
- #120
- Cell parameters
- a = 14.375(6) Å · c = 4.615(3) Å
- Z
- 6
- Morphology
thin, irregular plates having fibrous texture; fine-grained, massive.
Crystal structure
Chemical composition
Synonyms
- Pseudorutiel
In other languages
- German
- Pseudorutil
- Italian
- Pseudorutile · Pseudorutilo
Classification
Strunz
10th ed.4.CB.25
- 4OxidesClass
- 4.CMetal: Oxygen = 2: 3,3: 5, and similarDivision
- 4.CBWith medium-sized cationsGroup
- 4.CB.25PseudorutileSpecies
Dana
8th ed.08.04.02.01
- 08Multiple Oxides Containing Niobium, Tantalum or TitaniumClass
- 08.04A2B3O9Type
- 08.04.02— unnamed intermediate level —Group
- 08.04.02.01PseudorutileSpecies
CIM
—7.9.18
- 7Oxides and HydroxidesClass
- 7.9Oxides of TiGroup
- 7.9.18PseudorutileSpecies
Group, growth & confusion
Literature, links & citation
Citations
- 1959KARKHANAVALA, M. D., MOMIN, A. C. (1959) Subsolidus Reactions in the System Fe2O3- TiO2. Journal of the American Ceramic Society, 42 (8). 399-402 doi:10.1111/j.1151-2916.1959.tb13600.xDOI: 10.1111/j.1151-2916.1959.tb13600.x
- 1966TEUFER, G.; TEMPLE, A. K. (1966) Pseudorutile—a New Mineral Intermediate between Ilmenite and Rutile in the Natural Alteration of Ilmenite. Nature, 211 (5045). 179-181 doi:10.1038/211179b0DOI: 10.1038/211179b0
- 1971Larrett, M.J.W., Spencer, W.G. (1971) Contributions to Australasian Mineralogy, 3. "Pseudorutile" from South Neptune Island, South Australia. Amdel Bulletin: 12: 74-80.
- 1975Grey, Ian E., Reid, Alan F. (1975) The structure of pseudorutile and its role in the natural alteration of ilmenite. American Mineralogist, 60 (9-10) 898-906
- 1980Wort, M. J., Jones, M. P. (1980) X-ray diffraction and magnetic studies of altered ilmenite and pseudorutile. Mineralogical Magazine, 43 (329) 659-663 doi:10.1180/minmag.1980.043.329.16 DOI: 10.1180/minmag.1980.043.329.16
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Pseudorutile — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/pseudorutile-3296},
note = {Accessed 2026-05-11}
}