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Cheralite

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Formula:
(Ca,Ce)(Th,Ce)(PO4)2
System:
Monoclinic
Lustre:
Vitreous
Hardness:
5
Member of:
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

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).
8.AD.50

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

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
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First Recorded Occurrence of Cheralite

Physical Properties of Cheralite

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°
Max Birefringence:
δ = 0.038
Image 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)(PO4)2
Essential elements:
All elements listed in formula:

Relationship of Cheralite to other Species

Member of:
Other Members of Group:
Gasparite-(Ce)(Ce,REE)(AsO4)
Monazite
Monazite-(Ce)(Ce,La,Nd,Th)(PO4)
Monazite-(La)(La,Ce,Nd)(PO4)
Monazite-(Nd)(Nd,La,Ce)(PO4)
Monazite-(Sm)(Sm,Gd,Ce,Th)(PO4)
RooseveltiteBi(AsO4)
Turnerite
Unnamed (Gd-dominant monazite)((Gd,Y,Dy,Sm,Nd),Th,Ca)PO4
8.AD.05NahpoiteNa2HPO4
8.AD.10MonetiteCa(HPO4)
8.AD.10WeiliteCa(HAsO4)
8.AD.10ŠvenekiteCa(H2AsO4)2
8.AD.15Archerite(K,NH4)(H2PO4)
8.AD.15Biphosphammite(NH4,K)(H2PO4)
8.AD.20Phosphammite(NH4)2(HPO4)
8.AD.25BuchwalditeNaCa(PO4)
8.AD.30SchultenitePb(HAsO4)
8.AD.35Chernovite-(Y)Y(AsO4)
8.AD.35DreyeriteBi(VO4)
8.AD.35Wakefieldite-(Ce)Ce(VO4)
8.AD.35Wakefieldite-(Y)Y(VO4)
8.AD.35Xenotime-(Y)Y(PO4)
8.AD.35PretuliteSc(PO4)
8.AD.35Xenotime-(Yb)(Yb,Y,HREE)(PO4)
8.AD.35Wakefieldite-(La)La(VO4)
8.AD.40PucheriteBi(VO4)
8.AD.45XimengiteBi(PO4)
8.AD.50Gasparite-(Ce)(Ce,REE)(AsO4)
8.AD.50Monazite-(Ce)(Ce,La,Nd,Th)(PO4)
8.AD.50Monazite-(La)(La,Ce,Nd)(PO4)
8.AD.50Monazite-(Nd)(Nd,La,Ce)(PO4)
8.AD.50RooseveltiteBi(AsO4)
8.AD.50Monazite-(Sm)(Sm,Gd,Ce,Th)(PO4)
8.AD.50UM2005-35-VO:CaFePSiTh(Th,Ca)(VO4,SiO4,PO4)
8.AD.55TetrarooseveltiteBi(AsO4)
8.AD.60Chursinite(Hg2+)0.5Hg2+(AsO4)
8.AD.65ClinobisvaniteBi(VO4)

Other Names for Cheralite

Name in Other Languages:
German:Cheralith
Simplified Chinese:磷钙钍矿

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 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

Localities for Cheralite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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. franchini@infovia.com.ar ; aimpicc@uncoma.edu.ar; 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. rlira@com.uncor.edu; fpoklepovic@com.uncor.edu; Washington State University, Pullman, Washington; meinert@wsu.edu; Gerencia de Minería de Córdoba. Celso Barrios 1665, 5016, Córdoba. gema@arnet.com.ar.
NUEVOS DATOS MINERALOGICOS DEL PROSPECTO DE ETRL (Nb) JASIMAMPA, SIERRA DE SUMAMPA, SANTIAGO DEL ESTERO
Australia
 
  • Northern Territory
    • Barkly Region
      • Tennant Creek
http://www.ga.gov.au/image_cache/GA8817.pdf, http://www.arafuraresources.com.au/nol_geo.html
  • Victoria
    • Swan Hill Rural City
      • Lake Boga
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
      • Röhrnbach
Habel, M. (2011): Neufunde aus dem östlichen Bayerischen Wald (VIII). Mineralien Welt. 22 (1),80-87
    • Upper Palatinate
      • 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 Mts
      • 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
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Vigezzo Valley
          • Trontano
Guastoni A., Mazzoli C. (2007): Age determination by μ-PIXE analysis of cheralite-(Ce) from emerald-bearing pegmatites of Vigezzo Valley (Western Alps, Italy). Mitt. Österr. Miner. Ges., 153, 279-282; Boscardin M., Mattioli V., Rocchetti I. (2013): Minerali della Valle Vigezzo. Litotipografia Alcione, Lavis (Trento), 229 pp.
  • 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
    • Bojanala Platinum District
      • Western Bushveld Complex
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.
      • 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
        • Tolicha Peak
          • Landmark-Life Preserver group
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Mexico
    • Rio Arriba Co.
Gunnar Farber
  • Wisconsin
    • Marathon Co.
Rocks and Minerals, (1987) 62:188-195
Hanson, S.L., et al (1999) Rocks and Minerals, 74, 184
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).
Mineral and/or Locality  
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