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Monazite-(Nd)

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Big Photo

Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province (Bustillos Province), Potosí Department, Bolivia
© Saul Krotki 2007

Show Monazite-(Nd) Photos (7)



Formula:
(Nd,La,Ce)(PO
 
4
)
Hardness:5 - 5½
Member of:Monazite Group
Name:From the Greek μουάζειυ "to be solitary" in allusion to the rarity of its presence in the first known localities, plus "Nd" as the Nd-dominant member of the Monazite series.


Monazite Group

Classification of Monazite-(Nd)

IMA status:Approved 1986
Strunz 8th edition ID:7/A.15-30
Nickel-Strunz 10th (pending) edition ID:8.AD.50

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
Dana 8th edition ID:38.4.3.5

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
Hey's CIM Ref.:19.9.5

19 : Phosphates
9 : Phosphates of rare earths and Sc
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Type Occurrence of Monazite-(Nd)

Type Locality:Monte Giove, Vallone del Vannino, Formazza Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Physical Properties of Monazite-(Nd)

Hardness (Mohs):5 - 5½

Optical Data of Monazite-(Nd)

Type:Biaxial (+)
RI values: nα = 1.770 - 1.800 nβ = 1.771 - 1.802 nγ = 1.830 - 1.850
Maximum Birefringence:δ = 0.060

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:extreme

Chemical Properties of Monazite-(Nd)

Formula:
(Nd,La,Ce)(PO
 
4
)
Essential elements:Nd, O, P
All elements listed in formula:Ce, La, Nd, O, P

Relationship of Monazite-(Nd) to other Species

Member of:Monazite Group
Other Members of Group:

- +
Cheralite
(Ca,Ce)(Th,Ce)(PO
 
4
)
 
2
Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
Kularite
(Ce,Nd,La,Eu)[PO
 
4
]
Monazite-(Ce)
(Ce,La,Nd,Th)(PO
 
4
)
Monazite-(La)
(La,Ce,Nd)(PO
 
4
)
Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
Rooseveltite
Bi(AsO
 
4
)
Unnamed (Gd-dominant monazite)
((Gd,Y,Dy,Sm,Nd),Th,Ca)PO
 
4
Related Minerals - Nickel-Strunz Grouping):

- +
8.AD.05Nahpoite
Na
 
2
HPO
 
4
8.AD.10Monetite
Ca(HPO
 
4
)
8.AD.10Weilite
Ca(HAsO
 
4
)
8.AD.10Švenekite
Ca(H
 
2
AsO
 
4
)
 
2
8.AD.15Archerite
(K,NH
 
4
)(H
 
2
PO
 
4
)
8.AD.15Biphosphammite
(NH
 
4
,K)(H
 
2
PO
 
4
)
8.AD.20Phosphammite
(NH
 
4
)
 
2
(HPO
 
4
)
8.AD.25Buchwaldite
NaCa(PO
 
4
)
8.AD.30Schultenite
Pb(HAsO
 
4
)
8.AD.35Chernovite-(Y)
Y(AsO
 
4
)
8.AD.35Dreyerite
Bi(VO
 
4
)
8.AD.35Wakefieldite-(Ce)
Ce(VO
 
4
)
8.AD.35Wakefieldite-(Y)
Y(VO
 
4
)
8.AD.35Xenotime-(Y)
Y(PO
 
4
)
8.AD.35Pretulite
Sc(PO
 
4
)
8.AD.35Xenotime-(Yb)
(Yb,Y,HREE)(PO
 
4
)
8.AD.35Wakefieldite-(La)
La(VO
 
4
)
8.AD.40Pucherite
Bi(VO
 
4
)
8.AD.45Ximengite
Bi(PO
 
4
)
8.AD.50Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
8.AD.50Monazite-(Ce)
(Ce,La,Nd,Th)(PO
 
4
)
8.AD.50Monazite-(La)
(La,Ce,Nd)(PO
 
4
)
8.AD.50Rooseveltite
Bi(AsO
 
4
)
8.AD.50Cheralite
(Ca,Ce)(Th,Ce)(PO
 
4
)
 
2
8.AD.50Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
8.AD.50UM2005-35-VO:CaFePSiTh
(Th,Ca)(VO
 
4
,SiO
 
4
,PO
 
4
)
8.AD.55Tetrarooseveltite
Bi(AsO
 
4
)
8.AD.60Chursinite
(Hg
+
2
)
 
0.5
Hg
2+
 
(AsO
 
4
)
8.AD.65Clinobisvanite
Bi(VO
 
4
)
Related Minerals - Hey's Index Grouping:

- +
19.9.1Xenotime-(Y)
Y(PO
 
4
)
19.9.2Churchite-(Y)
Y(PO
 
4
) · 2H
 
2
O
19.9.3Monazite-(Ce)
(Ce,La,Nd,Th)(PO
 
4
)
19.9.4Monazite-(La)
(La,Ce,Nd)(PO
 
4
)
19.9.6Rhabdophane-(Ce)
(Ce,La)(PO
 
4
) · H
 
2
O
19.9.7Rhabdophane-(La)
(La,Ce)(PO
 
4
) · H
 
2
O
19.9.8Rhabdophane-(Nd)
(Nd,Ce,La)(PO
 
4
) · H
 
2
O
19.9.9Vitusite-(Ce)
Na
 
3
(Ce,La,Nd)(PO
 
4
)
 
2
19.9.10Florencite-(Ce)
CeAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
19.9.11Florencite-(La)
LaAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
19.9.12Florencite-(Nd)
(Nd,La,Ce)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
19.9.13Kolbeckite
ScPO
 
4
 · 2H
 
2
O

Other Names for Monazite-(Nd)

Synonyms:
IMA1986-052
Other Languages:
Russian:Монацит-(Nd)
Simplified Chinese:独居石-(Nd)

Other Information

Health Warning: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-(Nd)

Reference List:

- +
American Mineralogist (1983): 68: 849.

Graeser, St. & Schwander, H. (1987): Gasparite-(Ce) and monazite-(Nd): two new minerals to the monazite group from the Alps. Schweiz. Mineral. Petrogr. Mitt., 67, 101-113.

American Mineralogist (1988): 73: 1495.

Schweizerische mineralogische und petrographische Mitteilungen (1987): 67: 103-113.

Internet Links for Monazite-(Nd)

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    • Localities for Monazite-(Nd)

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Tasmania
      • Interview River district
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    China
     
    • Jilin Province (Manchuria; Dongbei Region)
      • Tonghua Prefecture
        • Tonghua Co.
    		Guimei Yu and Liangchao Zhao (1988): Acta Mineralogica Sinica 8(1), 25-30
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Western Attikí District
        • Megara
    		Bull. Acad. Serbe Sci. Art,72, #20, 35-42
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Formazza Valley
          • Vallone del Vannino
    		Graeser, St. & Schwander, H. (1987): Gasparite-(Ce) and monazite-(Nd): two new minerals to the monazite group from the Alps. Schweiz. Mineral. Petrogr. Mitt.: 67, 101-113.
    Japan
     
    • Shikoku Island
      • Kagawa Prefecture
    		Minakawa (1986) Sanko-Gakkai Kou'en-Youshi, 72.
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Bodaibo
            • Lena Gold District
              • Kropotkinsky ore cluster
    		http://www.igem.ru/igem/chem/pt/sukhloge.htm; Pavel M. Kartashov data
    • Northern Region
      • Komi Republic
        • Prepolar Ural
          • Kozhim River Basin
            • Maldynyrd (Maldy-nyrd) range
              • Grubependity Lake
    		http://geo.web.ru/conf/alkaline/2008/Repina.htm
    Repina, S.A. (2008): Geology of Ore Deposits 50(7), 609-619.
    USA
     
    • North Carolina
      • Yancey Co.
        • Spruce Pine District
          • Burnsville
            • Hurricane Mountain
    • Wisconsin
      • Marathon Co.
    		Hanson, S.L., et al (1999) Rocks and Minerals, 74, 184
    Hanson, S.L., et al (1999) Rocks and Minerals, 74, 184
        • Wausau pluton
          • "Rotten granite" quarries
    		Thomas Buchholz, 1999 "Minerals of a Wausau Pegmatite, Marathon County, Wisconsin", Rocks and Minerals, vol .74 #4, p. 254 - 258.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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