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Cheralite

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Formula:
(Ca,Ce)(Th,Ce)(PO
 
4
)
 
2
System:MonoclinicLustre:Vitreous
Hardness:5
Member of:Monazite Group


Monazite Group. The CaTh(PO4)2-dominant member of the group.
Redefined very recently (Linthout, 2007).
Not to be confused with the recently discredited cheralite-(Ce) (= Ca-rich monazite-(Ce)).

Classification of Cheralite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" 1953
Explanation of status:CNMMN 05-F: The name cheralite is applied to the members dominated by CaTh(PO4)2 in the system 2(REEPO4) - CaTh(PO4)2 - 2(ThSiO4); the name brabantite is discredited; see Linthout (2007).
Strunz 8th edition ID:7/A.15-40
Strunz 9th edition ID:8.BD.50
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
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Type Occurrence of Cheralite

Type Locality:Kuttakuzhi (Kuttankuli), Thiruvananthapuram (Trivandrum), Thiruvananthapuram District, Kerala (Travancore), India

Physical Properties of Cheralite

Lustre:Vitreous
Hardness (Mohs):5

Crystallography of Cheralite

Crystal System:Monoclinic

Optical Data of Cheralite

Type:Biaxial (+)
RI values: nα = 1.779 nβ = 1.780 nγ = 1.817
2V:Measured: 17° to 20°, Calculated: 20°
Maximum Birefringence:δ = 0.038

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

Chemical Properties of Cheralite

Formula:
(Ca,Ce)(Th,Ce)(PO
 
4
)
 
2
Simplified for copy/paste:(Ca,Ce)(Th,Ce)(PO4)2
Essential elements:Ce, O, P
All elements listed in formula:Ca, Ce, O, P, Th

Relationship of Cheralite to other Species

Member of:Monazite Group
Other Members of Group:

- +
Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
Monazite
Monazite-(Ce)
(Ce,La,Nd,Th)(PO
 
4
)
Monazite-(La)
(La,Ce,Nd)(PO
 
4
)
Monazite-(Nd)
(Nd,La,Ce)(PO
 
4
)
Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
Rooseveltite
Bi(AsO
 
4
)
Turnerite
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.50Monazite-(Nd)
(Nd,La,Ce)(PO
 
4
)
8.AD.50Rooseveltite
Bi(AsO
 
4
)
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
)

Other Names for Cheralite

Other Languages:
German:Cheralith
Russian:Чералит
Simplified Chinese:磷钙钍矿

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 Cheralite

Reference List:

- +
Neues Jahrbuch für Mineralogie, Monatshefte (1995), 344-350.

Anthony, Bideaux, Bladh & Nichols (2000), Handbook of Mineralogy, Vol. IV: 105.

American Mineralogist: 38: 734.

American Mineralogist: 39: 403.

American Mineralogist (1967): 52: 13.

Mineralogical Magazine 43 (1980): 885.

Trends in Mineralogy (1992): 1: 103.

Linthout, K. (2007): Tripartite division of the system 2REEPO4 – CaTh(PO4)2– 2ThSiO4, discreditation of brabantite, and recognition of cheralite as the name for members dominated by CaTh(PO4)2. Can. Mineral. 45, 503-508.

Internet Links for Cheralite

Search Engines:
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  • External Links:
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  • Look for Cheralite on Athena Mineralogy
  • Look for Cheralite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
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  • SpiriferMinerals.com - high quality low prices
  • The Arkenstone - Fine Minerals
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  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
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  • Localities for Cheralite

    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.
    (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.
    Argentina
     
    • Santiago del Estero
    M. B. FRANCHINI, R. LIRA, L. MEINERT, M. F. POKLEPOVIC, A. IMPICCINI, H. A. MILLONE, CONICET, CIMAR, Facultad de Ingeniería, Universidad Nacional del Comahue, Av. Buenos Aires 1400 (8300) Neuquén, Argentina. [email protected] ; [email protected]; CONICET. Museo de Mineralogía y Geología “Dr. A. Stelzner”, F.C.E.F. y N. Universidad Nacional de Córdoba. Av. V. Sársfield 299, (5000) Córdoba, Argentina. [email protected]; [email protected]; Washington State University, Pullman, Washington; [email protected]; Gerencia de Minería de Córdoba. Celso Barrios 1665, 5016, Córdoba. [email protected]
    NUEVOS DATOS MINERALOGICOS DEL PROSPECTO DE ETRL (Nb) JASIMAMPA, SIERRA DE SUMAMPA, SANTIAGO DEL ESTERO
    Australia
     
    • Northern Territory
      • Tennant Inlier
        • Tennant Creek
    http://www.ga.gov.au/image_cache/GA8817.pdf, http://www.arafuraresources.com.au/nol_geo.html
    • Victoria
      • Swan Hill Rural City
    Mills, S. J., Birch, W. D., Maas, R., Phillips, D. & Plimer, I. R. (2008) Lake Boga Granite, northwestern Victoria: mineralogy, geochemistry and geochronology, Australian Journal of Earth Sciences, 55(3), 281–299.; Mills, S. J. & Birch, W. D. (2010) Uranmineralien aus dem Lake-Boga-Granit, Victoria, Australien. Mineralien-Welt, 21(3), 62–67. (In German)
    Austria
     
    • Lower Austria
      • Wachau
        • Spitz
          • Miesling valley
    Kolitsch, U., Löffler, E., Pristacz, H. & Brandstätter, F. (2010): 1654) Triplit und weitere Mineralien aus einem anstehenden Pegmatit im Mieslingtal bei Spitz, Waldviertel, Niederösterreich. P. 241 in Niedermayr et al. (2010): Neue Mineralfunde aus Österreich LIX. Carinthia II, 200./120., 199-260.
    • Styria
      • Kindberg
        • Hadersdorf
    Taucher, J. (1998); Tomazic, P. (2010): Interessante Funde von Schörl, Fluorit und weiteren Mineralien im Gneissteinbruch bei Hadersdorf im Mürztal, Steiermark. Der Steirische Mineralog, H. 24, 13-16.
    Brazil
     
    • Minas Gerais
      • Poços de Caldas alkaline complex
        • Caldas
          • Campo do Cercado
    Waber (1991)
        • Poços de Caldas
    Baretto & Fujimori (1986)
    Canada
     
    • British Columbia
      • Omenica Mining Division
    Jennifer Pell (1994) Carbonatites, Nepheline Syenites, Kimberlites and Related Rocks in British Columbia. Brithish Columbia Ministry of Energy Bulletin 88.
        • Williston Lake
    Berger, V.I., Singer, D.A., and Orris, G.J. (2009): USGS Open-File Report 09-1139
    China
     
    • Xinjiang Autonomous Region
      • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
        • Aletai Prefecture (Altay Prefecture)
          • Fuyun Co. (Koktokay Co.)
            • Koktokay pegmatite field (Keketuohai pegmatite field)
              • Altay Mine
    Tianren Zou, Xiangchen Zhang, Fuyi Jia, Rucong Wang, Huizhi Cao, and Boqing Wu (1986): Mineral Deposits 5(4), 34-48
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
    Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
      • Plzeň Region
        • Sušice (Schüttenhofen)
    Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Ústí Region
        • Šluknov (Schluckenau)
    Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Šumperk (Mährisch Schönberg)
          • Maršíkov (Marchendorf)
    Chládek,Š.:Mineralogická charakteristika pegmatitu na Lysé hoře u Maršíkova v Hrubém Jeseníku. Bakalářská práce,Univerzita Palackého Olomouc,2011,s.1-44.
      • Vysočina Region
        • Žďár nad Sázavou
          • Fryšava
    Černý P., Veselovský F.: Výskyt částečně desilikovaných pegmatitů pronikajících serpentinitem v obci Tři Studně. Minerál, 2013, roč. 21, č. 4, s. 299-304.
    Finland
     
    • Lapland Region
      • Savukoski
        • Tulppio
    Vartiainen, H. 1980 The petrography, mineralogy and petrochemistry of the Sokli carbonative massif, northern Finland. Geological Survey of Finland, Bulletin, 313
    Al-Ani, T.,Sarapää, O. (2009). Rare earth elements and their mineral phases in Jammi carbonatite veins and fenites on the south side of Sokli carbonatite complex, NE Finland. Geologian tutkimuskeskus, arkistoraportti, M19/4723/2009/34. 24 p.
    • Western and Inner Finland Region
      • Orivesi
        • Eräjärvi area
    Ilkka Mikkola collection
    France
     
    • Midi-Pyrénées
      • Aveyron
        • Decazeville
          • Valzergues
    Lheur C., Peraud W., Meisser N. (2002), Résultats d'analyses concernant les arséniates et découverte de chéralite-(Ce) à la mine de Valzergues (Aveyron), Le Cahier des Micromonteurs, n°2, pp: 3-8
    Germany
     
    • Bavaria
      • Lower Bavaria
        • Bavarian Forest
          • Waldkirchen
            • Röhrnbach
    Habel, M. (2011): Neufunde aus dem östlichen Bayerischen Wald (VIII). Mineralien Welt. 22 (1),80-87
      • Upper Palatinate
        • Oberpfälzer Wald
          • Vohenstrauß
            • Waidhaus
              • Hagendorf
    Schnorrer, G., Kronz, A. & Pascher,G. (2003): Cheralith, Monazit und Xenotim - drei neue Minerale der Xenotim-Monazit-Gruppe sowie Uranosphaerit, ein sekundäres Wismut-Uran-Mineral vom ehemaligen Phosphatpegmatit Hagendorf-Süd/Oberpfalz. Aufschluss, 54, 267-272. (in German)
    • Rhineland-Palatinate
      • Eifel
        • Mayen
          • Ettringen
            • Bellerberg volcano
    Blass, G., Graf, HW., Kolitsch, U., Sebold, D., Über neue Mineralfunde aus der Vulkaneifel, MW 6/2005
    • Saxony
      • Erzgebirge
        • Schmiedeberg
    Witzke, T. (2011): Neues von Sadisdorf, Erzgebirge: Gananit, Cheralith, Grayit und Brockit. Mineralien Welt. 22 (4):47-50
    Hungary
     
    • Baranya Co.
    Nagy, G., (2003): Nacareniobsite in Phonolites in the Mecsek Mts. (Hungary) - Second occurrence in the world, Acta Mineralogica-Petrographica, Abstract series 1, Szeged 2003
    • Fejér Co.
      • Velencei Mtns
        • Lovasberény
    Szakáll & Gatter, 1993
    India
     
    • Kerala (Travancore)
      • Thiruvananthapuram District
        • Thiruvananthapuram (Trivandrum)
    Bowie S H U, Horne J E T (1953) Cheralite, a new mineral of the monazite group, Mineralogical Magazine 30, 93-99
    Italy
     
    • Tuscany
      • Livorno Province
        • Campiglia Marittima
    Biagioni, C., Orlandi, P., Gini, C., Bargellini, C., Gamucci, C., Marinai, V., Nannoni, R. (2013). Botro ai Marmi. I minerali delle miniere Maffei e Montorsi. Rivista Mineralogica Italiana, 1/2013, 63-83.
    P. Orlandi, P. (1997): Zibaldone di mineralogia italiana. Rivista Mineralogica Italiana, 22(2), 179-185.
    Laos
     
    • Bokeo Province
      • Huay Xai
    Sutherland, F.L., Bosshart, G., Fanning, C.M., Hoskind, P.W.O., and Coenraads, R.R. (2002): Journal of Asian Earth Sciences 20(7), 841-849.
    Madagascar
     
    • Fianarantsoa Province
      • Horombe Region
        • Ihosy District
          • Sahambano Commune
    Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Ore Geology Reviews 34, 134-154.
    Morocco
     
    • Meknès-Tafilalet Region
      • Khénifra Province
        • Tamazeght Mountain Range
    Khadem Allah, B. (1993)
    Poland
     
    • Lower Silesia (Dolnośląskie)
    Kucha H., Wieczorek A. 1980: Ca1-xTh1-xRE2x[PO4]2 . 2H2O, a new mineral from Lower Silesia, Poland. Mineralogia Polonica, vol. 11, No 1, 123-136
    Slovakia
     
    • Bratislava Region
      • Bratislava Co.
        • Bratislava
          • Devín
    Chudík, P. & Uher, P. (2009): Mitt. Österr. Mineral. Ges. 155, 40. (Abs.)
    South Africa
     
    • North West Province
      • Western Bushveld Complex
        • Rustenburg District
    Cairncross & Dixon (1995) 138-140.
    Switzerland
     
    • Ticino (Tessin)
      • Lago Maggiore
        • Brissago
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 110.
    USA
     
    • Michigan
      • Marquette Co.
        • Marquette iron range
          • Republic
    Rebecca A. Simmons (2009) "Minerals of the Grizzly Pegmatite, Marquette County, Michigan", Mineral News, 25, #4, 1 & 12-13.
    • Nevada
      • Nye Co.
        • Tolicha District
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Rio Arriba Co.
    Gunnar Farber
    • Wisconsin
      • Marathon Co.
    Hanson, S.L., et al (1999) Rocks and Minerals, 74, 184
        • Rib Mountain
    Rocks and Minerals, (1987) 62:188-195
    Minerals of the Stettin pluton, Marathon County, Wisconsin. A. Falster, Rocks & Minerals, 61(2), 1986, pp 74–78.
      • Wood Co.
        • Vesper
    Min.News 15(5):1, 5 - 6
    • Wyoming
      • Carbon Co.
        • Encampment District
          • Encampment
    Dave Harris (location specified by dealer).
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