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Member of:
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 for gemological information about Monazite.

Classification of Monazite URL:
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Crystallographic forms of Monazite

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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Relationship of Monazite to other Species

Member of:
Other Members of Group:
Unnamed (Gd-dominant monazite)((Gd,Y,Dy,Sm,Nd),Th,Ca)PO4

Other Names for Monazite

Name in Other Languages:
Norwegian (Bokmål):Urdit
Simplified Chinese:独居石
Tajik (Cyrillic Script):Монтсит
Traditional Chinese:獨居石

Other Information

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 Monazite

Reference List:
Breithaupt (1829) Journal für Chemie und Physik, Nuremberg: 55: 301 (as Monazit).

Brooke (1831) Philosophical Magazine and Journal of Science: 10: 139 (as Mengite).

Palache, C., Berman, H., & 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., Gramaccioli, C.M. (1991a) Alpine monazite: further data. Can. Mineral., 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.

Nicolas Clavier, Renaud Podor, Nicolas Dacheux (2011): Crystal chemistry of the monazite structure. Journal of the European Ceramic Society, 31, 941-976.

Internet Links for Monazite

The following Monazite specimens are currently listed for sale on

Localities for Monazite

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.
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