Ilmenorutile

Where it forms, where it's found

Type locality: Pit No. 59
Ilmen Mountains
Chelyabinsk Oblast
Russia

166recorded occurrences

Source · OpenStreetMap

Physical

Hardness: 1Talc
2Gypsum
3Calcite
4Fluorite
5Apatite
6Orthoclase
7Quartz
8Topaz
9Corundum
10Diamond
Colour: Black

Crystallography

Crystal system: Tetragonal

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
41NbNiobium Niobium 1 92.906 92.906
53.77%
22TiTitanium Titanium 1 47.867 47.867
27.71%
8OOxygen Oxygen 2 15.999 31.998
18.52%
Total 172.771 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
41NbNiobium	Niobium	1	92.906	92.906	53.77%
22TiTitanium	Titanium	1	47.867	47.867	27.71%
8OOxygen	Oxygen	2	15.999	31.998	18.52%
	Total	172.771	100.00%

Synonyms

Ilmenorutil

Classification

Dana

8th ed.

04.04.01.02

04Simple OxidesClass
04.04AX₂Type
04.04.01Rutile group (Tetragonal: P4/mnm)Group
04.04.01.02IlmenorutileSpecies

Literature, links & citation

Citations

—Metodicheskie Mineralogicheskie Issledovaniya (Nauka Press, Moscow): 39-50.
1908Prior, G. T., Zambonini, F. (1908) On Strüverite and its relation to Ilmenorutile. Mineralogical Magazine and Journal of the Mineralogical Society, 15 (68) 78-89 doi:10.1180/minmag.1908.015.68.07 DOI: 10.1180/minmag.1908.015.68.07
1964Černý P., Čech, F., Povondra, P. (1964) Review of ilmenorutile-strüverite minerals. Neues Jahrbuch für Mineralogie Abhandlungen: 101: 142-172.
1966Lima de Faria, J., Quadrado, R. (1966) Ilmenorutile and struverite from Nampoça, Alto Ligonha, Mozambique. Garcia de Orta. Revista da Junta das Missões Geográficas e de Investigações do Ultramar, 14 (2) 305-310
1970Siivola, J. (1970) Ilmenorutile and strüverite from Penikoja, Somero, SW Finland. Bulletin of the Geological Society of Finland, 42. 33-36 doi:10.17741/bgsf/42.004DOI: 10.17741/bgsf/42.004

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Ilmenorutile — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/ilmenorutile-2014},
  note      = {Accessed 2026-05-11}
}