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Monazite

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Name:
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.


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Age distributionHide

Recorded ages:
Paleoarchean to Neogene : 3254 ± 72 Ma to 5.4 ± 0.5 Ma - based on 255 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)
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Synonyms of MonaziteHide

Other Language Names for MonaziteHide

Dutch:Monaziet
French:Monazite
Italian:Monazite
Japanese:モナズ石
Norwegian (Bokmål):Urdit
Polish:Monacyt
Portuguese:Monazita
Simplified Chinese:独居石
磷铈镧矿
Spanish:Monazita
Swedish:Monazit
Tajik (Cyrillic Script):Монтсит
Traditional Chinese:獨居石
磷鈰鑭礦
Turkish:Monazit
Ukrainian:Монацит

Common AssociatesHide

Associated Minerals Based on Photo Data:
Anatase16 photos of Monazite associated with Anatase on mindat.org.
Quartz15 photos of Monazite associated with Quartz on mindat.org.
Rutile10 photos of Monazite associated with Rutile on mindat.org.
Schorl10 photos of Monazite associated with Schorl on mindat.org.
Magnetite8 photos of Monazite associated with Magnetite on mindat.org.
Ilmenite6 photos of Monazite associated with Ilmenite on mindat.org.
Albite5 photos of Monazite associated with Albite on mindat.org.
Zircon4 photos of Monazite associated with Zircon on mindat.org.
Uraninite3 photos of Monazite associated with Uraninite on mindat.org.
Garnet3 photos of Monazite associated with Garnet on mindat.org.

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:
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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.
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.

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