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About MonaziteHide

From the Greek μονάζει "to be solitary" in allusion to the rarity of its presence in the first known localities.
Unclassified members of the Monazite Group. See also: Monazite-(Ce), Monazite-(La), Monazite-(Nd), Monazite-(Sm), Unnamed (Gd-dominant monazite).

The name monazite, without a elemental suffix, was the accepted name for all material in this group, regardless of the REE-bearing components' relative abundance. The suffixes were added when the naming convention for all REE-bearing members was devised and implemented.

The great majority of "monazite" is monazite-(Ce), the La-, Nd-, Sm- and Gd-dominant members are all very rare.

Monazite usually contains small amounts of Th or sometimes U, both making it radioactive.

For "monazite-(Y)", see písekite-(Y) (this has a pyrochlore structures and thus is not a member of this group).

Visit gemdat.org for gemological information about Monazite.

Age distributionHide

Recorded ages:
Paleoarchean to Neogene : 3254 ± 72 Ma to 5.4 ± 0.5 Ma - based on 264 recorded ages.

Crystallographic forms of MonaziteHide

Crystal Atlas:
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Monazite no.1 - Goldschmidt (1913-1926)
Monazite no.37 - Goldschmidt (1913-1926)
Monazite no.116 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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Synonyms of MonaziteHide

Other Language Names for MonaziteHide

Simplified Chinese:独居石
Tajik (Cyrillic Script):Монтсит
Traditional Chinese:獨居石

Common AssociatesHide

Associated Minerals Based on Photo Data:
16 photos of Monazite associated with AnataseTiO2
15 photos of Monazite associated with QuartzSiO2
10 photos of Monazite associated with RutileTiO2
10 photos of Monazite associated with SchorlNa(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
8 photos of Monazite associated with MagnetiteFe2+Fe3+2O4
6 photos of Monazite associated with IlmeniteFe2+TiO3
5 photos of Monazite associated with AlbiteNa(AlSi3O8)
4 photos of Monazite associated with ZirconZr(SiO4)
3 photos of Monazite associated with UraniniteUO2
3 photos of Monazite associated with Garnet GroupX3Z2(SiO4)3

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for MonaziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Lévy (1823) Annals of Philosophy, London: 5: 241 (as Turnerite).
Phillips (1823) Mineralogy. 3rd edition: 382.
Breithaupt, J.F.A. (1829) Neue krystallographische Bestimmung und mineralogische Charakteristik verschiedener Mineralspecien, II. Ueber den Monazit, eine neue Specie des Mineral-Reichs. Journal für Chemie und Physik: 55: 301. [as Monazit].
Brooke, H. (1831) Philosophical Magazine and Journal of Science: 10: 189 (as Mengite).
Dana, J.D. (1838) American Journal of Science: 33: 70.
Miller (1852) Phillips' Mineralogy: 493 (Monazite), 653 (Turnerite).
Des Cloizeaux (1863) Manuel de minéralogie: 533.
Kokscharow (1863) Materialien zur Mineralogie Russlands: 8.
Vom Rath (1863) Poggendorff's Annalen: 119: 247.
Trechmann (1876) Neues Jahrbuch für Mineralogie: 593.
Dana, E.S. (1882) American Journal of Science: 24: 247.
Miers, H.A. (1885) On monazite from Cornwall, and connellite. Mineralogical Magazine, vol. 6, n° 30, 164-167.
Palache, C., Berman, H., and Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 691-696.
Overstreet, W.C. (1967) The geologic occurrence of monazite. USGS Professional Paper 530: 114-118.
Demartin, F., Pilati, T., Diella, V., Donzelli, S., and Gramaccioli, C.M. (1991) Alpine monazite: further data. The Canadian Mineralogist: 29: 61-67.
Pan, Y., Fleet, M.E., and MacRae, N.D. (1993) Oriented monazite inclusions in apatite porphyroblasts from the Hemo gold deposit, Ontario, Canada. Mineralogical Magazine: 57: 697-707.
Ni, Y., Hughes, J.M., and Mariano, A.N. (1995) Crystal chemistry of the monazite and xenotime structures. American Mineralogist: 80: 21-26.
Zhu, X.K. and O'Nions, R.K. (1999) Monazite chemical composition: some implications for monazite geochronology. Contributions to Mineralogy and Petrology: 137: 351-363.
Kolitsch, U. and Holtstam, D. (2004): Crystal chemistry of REEXO4 compounds (X = P, As, V). II. Review of REEXO4 compounds and their stability fields. European Journal of Mineralogy 16, 117-126.
Clavier, N., Podor, R., and Dacheux, N. (2011) Crystal chemistry of the monazite structure. Journal of the European Ceramic Society: 31: 941-976.
Janots, E., Gnos, E., Berger, A., and Whitehouse, M. (2014) High spatial resolution dating of hydrothermal monazite from Alpine clefts (Abstract). Geophysical Research Abstracts, Vol. 16, EGU2014-7145.
Anne-Magali Seydoux-Guillaume, Xavier Deschanels, Cédric Baumier, Stefan Neumeier, William John Weber, Sylvain Peuget (2018): Why natural monazite never becomes amorphous: Experimental evidence for alpha self-healing. American Mineralogist 103, 824-827.

Internet Links for MonaziteHide

Localities for MonaziteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListShow

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