Titanclinohumite

Where it forms, where it's found

54recorded occurrences

Source · OpenStreetMap

Physical

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

Crystallography

Crystal system: Monoclinic

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
22TiTitanium Titanium 9 47.867 430.803
38.40%
8OOxygen Oxygen 20 15.999 319.980
28.52%
12MgMagnesium Magnesium 9 24.305 218.745
19.50%
14SiSilicon Silicon 4 28.085 112.340
10.01%
9FFluorine Fluorine 2 18.998 37.996
3.39%
1HHydrogen Hydrogen 2 1.008 2.016
0.18%
Total 1121.880 100.00%
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
22TiTitanium	Titanium	9	47.867	430.803	38.40%
8OOxygen	Oxygen	20	15.999	319.980	28.52%
12MgMagnesium	Magnesium	9	24.305	218.745	19.50%
14SiSilicon	Silicon	4	28.085	112.340	10.01%
9FFluorine	Fluorine	2	18.998	37.996	3.39%
1HHydrogen	Hydrogen	2	1.008	2.016	0.18%
	Total	1121.880	100.00%

Synonyms

Ti-clinohumite
Titanclinohumit
Titanclinohumita
Titanklinohumit
Titanoclinohumite
Titanolivin
Titanolivine

Literature, links & citation

Citations

1938De Quervain, F. (1938) Zur Kenntnis des Titanklinohumites. Schweizerische Mineralogische und Petrographische Mitteilungen, 18, 591-604
1970McGetchin, T. R., Silver, L. T., Chodos, A. A. (1970) Titanoclinohumite: A possible mineralogical site for water in the upper mantle. Journal of Geophysical Research, 75 (2) 255-259 doi:10.1029/jb075i002p00255DOI: 10.1029/jb075i002p00255
1973Robinson, Keith, Gibbs, G. V., Ribbe, and Paul H. (1973) The crystal structures of the humite minerals. IV. Clinohumite and titanoclinohumite. American Mineralogist, 58 (1-2) 43-49
2000Ferraris, Giovanni, Prencipe, M., Sokolova, E., Gekimyants, V.M., Spiridonov, E.M. (2000) Hydroxylclinohumite, a new member of the humite group: Twinning, crystal structure and crystal chemistry of the clinohumite subgroup. Zeitschrift für Kristallographie - Crystalline Materials, 215 (3). 169-173 doi:10.1524/zkri.2000.215.3.169DOI: 10.1524/zkri.2000.215.3.169
2006Burke, Ernst A. J. (2006) A mass discreditation of GQN minerals. The Canadian Mineralogist, 44 (6) 1557-1560 doi:10.2113/gscanmin.44.6.1557 DOI: 10.2113/gscanmin.44.6.1557

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Titanclinohumite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/titanclinohumite-7338},
  note      = {Accessed 2026-05-11}
}