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Ferrithorite

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Big Photo

Khatuugiin thorite occurrence, Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia
© Pavel M. Kartashov

Show Ferrithorite Photos (3)



Formula:
(Th,Fe
3+
 
)[Si(O,OH)
 
4
]
Colour:Orange
A variety of Thorite

An iron(III)-rich variety of Thorite.
Originally reported from Aktyuz REE deposit, Kyrgyzstan.

Classification of Ferrithorite

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Physical Properties of Ferrithorite

Lustre:Waxy
Colour:Orange
Density (measured):4.96 g/cm3

Chemical Properties of Ferrithorite

Formula:
(Th,Fe
3+
 
)[Si(O,OH)
 
4
]
All elements listed in formula:Fe, H, O, Si, Th
Analytical Data:Analysis of material from Aktyuz REE deposit, Kyrgyzstan 
P2O5 (0.88)
As2O5 (0.51)
SiO2 (10.22)
TiO2 (0.13)
ThO2 (51.47)
U3O8 (0.41)
Al2O3 (4.10)
Fe2O3 (12.02)
REE2O3 (5.59)
MgO (0.12)
CaO (1.62)
MnO (1.93)
FeO (3.55)
CuO (0.23)
(Na,K)2O (0.26)
H2O (5.64)
Cl (0.20)

sum 98.88 wt.-%

Other Names for Ferrithorite

Synonyms:
Ferri-orangite (of Kalinin)Ferrothorite (of Lacroix)
Other Languages:
Simplified Chinese:铁钍石

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 Ferrithorite

Reference List:

- +
Starik, I. E., Kravchenko, L. L. and Melikova, O. S. (1941), Doklady AN SSSR 32, N4, 254.

Internet Links for Ferrithorite

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    • Localities for Ferrithorite

    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.
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    (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.
    China
     
    • Heilongjiang Province (Manchuria; Dongbei Region)
      • Qiqihaer Prefecture
        • Greater Hinggan (Khingan) Mts
    		Xiaoshi Ding, Ge Bai, Zhongxian Yuan, and Luren Sun (1981): Geological Review 46(5), 459-466
    • Inner Mongolia Autonomous Region
      • Baotou League (Baotou Prefecture)
        • Bayan Obo Mining District
          • Bayan Obo
            • Bayan Obo (Bayun-Obo; Baiyunebo) deposit
    		Youbin Liang, Zhonglong Xu, and Zhiyin Hu (1981): Geology and Prospecting 17(9), 29-33
    Kazakhstan
     
    • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
      • Balkhash (Balqash; Karatas; Prebalkhashie) Region
        • Mointy (Moyynty)
          • Mointy Railway Station
    		A.V. Stepanov data; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Northern Kazakhstan Province (Soltüstik Qazaqstan Oblysy; Severo-Kazakhstanskaya Oblast')
      • Saumalkol' (Volodarskoye)
        • Grachevsky Uranium ore field
    		Dahlkamp, F.J., Ed. (2009): Uranium Deposits of the World: Asia. Springer (Berlin, Heidelberg), pp. 191-268.
    Kyrgyzstan
     
    Starik, I. E., Kravchenko, L. L. and Melikova, O. S. (1941), Doklady AN SSSR 32, N4, 254
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    		P.M. Kartashov data
    Pavel M. Kartashov data
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Chara and Tokko Rivers Confluence
    		Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.)
      • Tuva Republic
    		P. Kartashov data
    Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980.
    USA
     
    • Colorado
      • El Paso Co.
    		Gross, E. and Heinrich, E., 1966, Petrology and Mineralogy of the Mount Rosa Area, El Paso and Teller Counties, Colorado. II. Pegmatites, American Mineralogist, v. 51, p. 299-323.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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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