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Uranpyrochlore (of Hogarth 1977)

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About Uranpyrochlore (of Hogarth 1977)Hide

Formula:
(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
usually is enriched by Ti, but in lesser quantities then betafites
Colour:
Red, Red-brown, chocolate-brown to black, amber-yellow
Lustre:
Adamantine, Resinous
Hardness:
4 - 5
Crystal System:
Isometric
Name:
The name reflects its uranium content and similarity to pyrochlore (Holmquist P.J., 1896).
First Recorded Locality:
A variety of Pyrochlore Group

Uranpyrochlore was previously considered to be the uranium-dominant member of the Pyrochlore group (Hogarth, 1977) but was discredited by Atencio et al. (2010) due to lack of acceptable analyses. The samples named as uranpyrochlore in previous literature are (according to the new nomenclature of the pyrochlore supergroup) U-rich oxynatropyrochlore.

Any new analyses confirming a U-dominant pyrochlore, according to 2010 nomenclature rules, will require a new name such as Oxyuranpyrochlore.




Classification of Uranpyrochlore (of Hogarth 1977)Hide

Discredited
4.DH.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
8.2.1.7

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
2 : A2B2O6(O,OH,F)
18.4.1

18 : Niobates and Tantalates
4 : Niobates and tantalates containing both U and rare earths

Physical Properties of Uranpyrochlore (of Hogarth 1977)Hide

Adamantine, Resinous
Colour:
Red, Red-brown, chocolate-brown to black, amber-yellow
Hardness:
4 - 5 on Mohs scale

Optical Data of Uranpyrochlore (of Hogarth 1977)Hide

Type:
Isotropic

Chemical Properties of Uranpyrochlore (of Hogarth 1977)Hide

Formula:
(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)

usually is enriched by Ti, but in lesser quantities then betafites

Crystallography of Uranpyrochlore (of Hogarth 1977)Hide

Crystal System:
Isometric
Cell Parameters:
a = 10.44 Å
Unit Cell V:
1,137.89 ų (Calculated from Unit Cell)

First Recorded Occurrence of Uranpyrochlore (of Hogarth 1977)Hide

Synonyms of Uranpyrochlore (of Hogarth 1977)Hide

Other Language Names for Uranpyrochlore (of Hogarth 1977)Hide

Varieties of Uranpyrochlore (of Hogarth 1977)Hide

SamiresiteA plumbian variety of Uranpyrochlore.

Common AssociatesHide

Associated Minerals Based on Photo Data:
14 photos of Uranpyrochlore (of Hogarth 1977) associated with CyrtoliteZr[(SiO4),(OH)4]
6 photos of Uranpyrochlore (of Hogarth 1977) associated with MicroclineK(AlSi3O8)
6 photos of Uranpyrochlore (of Hogarth 1977) associated with QuartzSiO2
6 photos of Uranpyrochlore (of Hogarth 1977) associated with AlbiteNa(AlSi3O8)
3 photos of Uranpyrochlore (of Hogarth 1977) associated with Garnet GroupX3Z2(SiO4)3
3 photos of Uranpyrochlore (of Hogarth 1977) associated with Smoky QuartzSiO2
2 photos of Uranpyrochlore (of Hogarth 1977) associated with TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
2 photos of Uranpyrochlore (of Hogarth 1977) associated with DolomiteCaMg(CO3)2
1 photo of Uranpyrochlore (of Hogarth 1977) associated with Thorogummite(Th,U)(SiO4)1-x(OH)4x
1 photo of Uranpyrochlore (of Hogarth 1977) associated with CoffiniteU(SiO4) · nH2O

Related Minerals - Nickel-Strunz GroupingHide

4.DH.Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6FIso. m3m (4/m 3 2/m)
4.DH.Roméite GroupA2(Sb5+)2O6Z
4.DH.Hydroxykenomicrolite(◻,Na,Sb3+)2Ta2O6(OH)Iso.
4.DH.OxyplumboroméitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.Cesiokenopyrochlore□Nb2(O,OH)6Cs1−x (x ∼ 0.20)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.05BranneriteUTi2O6Mon. 2/m : B2/m
4.DH.05OrthobranneriteU4+U6+Ti4O12(OH)2Orth.
4.DH.05Thorutite(Th,U,Ca)Ti2(O,OH)6Mon.
4.DH.10KassiteCaTi2O4(OH)2Orth.
4.DH.10Lucasite-(Ce)CeTi2(O,OH)6Mon.
4.DH.15Bariomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Ceriopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15JixianitePb(W,Fe3+)2(O,OH)7Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Plumbopyrochlore (of Skorobogatova et al.)A2Nb2(O,OH)6Z
4.DH.15Plumbomicrolite (of Hogarth 1977)
4.DH.15Plumbobetafite (of Hogarth 1977)A2-mD2X6-wZ1-n
4.DH.15Stibiomicrolite (of Groat et al.)
4.DH.15Strontiopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15Stannomicrolite (of Hogarth 1977)
4.DH.15Stibiobetafite (of Černý et al.)A2-mD2X6-wZ1-nIso.
4.DH.15Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15Fluornatromicrolite(Na1.5Bi0.5)Ta2O6FIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutopyrochlore (of Chukanov et al.)(Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH)Amor.
4.DH.15Hydrokenoelsmoreite2W2O6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20BismutostibiconiteBi(Sb5+,Fe3+)2O7Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20BindheimitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.20MonimolitePb2Sb5+2O7Iso. m3m (4/m 3 2/m)
4.DH.20CuproroméiteCu2Sb2(O,OH)7Iso.
4.DH.20StetefeldtiteAg2Sb2(O,OH)7Iso.
4.DH.20StibiconiteSb3+Sb5+2O6(OH)
4.DH.25RosiaitePbSb5+2O6Trig. 3m (3 2/m) : P3 1m
4.DH.30ZirconoliteCaZrTi2O7Orth.
4.DH.35LiandratiteU(Nb,Ta)2O8Trig.
4.DH.35PetscheckiteUFe(Nb,Ta)2O8Hex.
4.DH.40IngersoniteCa3Mn2+Sb5+4O14Trig. 3 2 : P31 2 1
4.DH.45PittongiteNa0.22(W,Fe3+)(O,OH)3 · 0.44H2OHex. 6 m2 : P6m2

Related Minerals - Dana Grouping (8th Ed.)Hide

8.2.1.1Pyrochlore GroupA2Nb2(O,OH)6Z
8.2.1.2Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
8.2.1.3Bariopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6ZIso. m3m (4/m 3 2/m) : Fd3m
8.2.1.4Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
8.2.1.5Ceriopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
8.2.1.6Plumbopyrochlore (of Skorobogatova et al.)A2Nb2(O,OH)6Z
8.2.1.8Strontiopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

18.4.2Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
18.4.3Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4Orth.
18.4.4IshikawaiteU4+Fe2+Nb2O8Mon.
18.4.5Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6Orth. mmm (2/m 2/m 2/m)
18.4.6Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
18.4.7Kobeite-(Y)(REE,Fe,U)3 Zr(Ti,Nb)3 O12
18.4.8Polycrase-(Y)Y(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m)
18.4.9Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
18.4.10Calciobetafite (of Mazzi & Munno)(Ca,Na)2(Nb,Ti)2(O,OH)7
18.4.11Yttrobetafite (of Hogarth 1977)A2-mD2X6-wZ1-n
18.4.12Samarskite-(Y)YFe3+Nb2O8Mon. 2/m : P2/b

Other InformationHide

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 Uranpyrochlore (of Hogarth 1977)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Smith (1877) American Journal of Science: 1: 3: 365.
Allen (1877) American Journal of Science: 14: 128.
Palache, C., Berman, H., and Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 748.
Hogarth, D.D. (1977) Classification and nomenclature of the pyrochlore group. American Mineralogist: 62: 403-410.
Mineralogical Magazine (1989) 53: 257.
Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., and Kartashov, P.M. (2010) The pyrochlore supergroup of minerals: nomenclature. Canadian Mineralogist: 48: 673-698.
Christy, A.G. and Atencio, D. (2013) Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine: 77: 13-20.

Internet Links for Uranpyrochlore (of Hogarth 1977)Hide

Localities for Uranpyrochlore (of Hogarth 1977)Hide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Afghanistan
 
  • Helmand
    • Dushan District
      • Khanneshin complex
Orris, G.J., and Bliss, J.D. (2002): Mines and Mineral Occurrences of Afghanistan. United States Geological Survey Open-File Report 02-110
Austria
 
  • Carinthia
    • Sankt Veit an der Glan District
      • Straßburg
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
Brazil
 
  • Amazonas
    • Presidente Figueiredo
      • Pitinga mine
A. C. Bastos Neto, V. P. Pereira, L. H. Ronchi, E. F. de Lima and J. C. Frantz (2009): The world-class Sn, Nb, Ta, F (Y, REE, Li) deposit and the massive cryolite associated with the albite-enriched facies of the Madeira A-type granite, Pitinga mining district, Amazonas State, Brazil. Canadian Mineralogist 47, 1329-1357.
  • Paraíba
    • Borborema mineral province
      • Nova Palmeira
Beurlen, H., Soares, D. R., Thomas, R., Prado-Borges, L. E., & Castro, C. D. (2005). Mineral chemistry of tantalate species new in the Borborema Pegmatitic Province, Northeast Brazil. Anais da Academia Brasileira de Ciências, 77(1), 169-182
  • Rio Grande do Norte
    • Borborema mineral province
      • Parelhas
Beurlen, H., Soares, D. R., Thomas, R., Prado-Borges, L. E., & Castro, C. D. (2005). Mineral chemistry of tantalate species new in the Borborema Pegmatitic Province, Northeast Brazil. Anais da Academia Brasileira de Ciências, 77(1), 169-182.
Beurlen, H., Soares, D. R., Thomas, R., Prado-Borges, L. E., & Castro, C. D. (2005). Mineral chemistry of tantalate species new in the Borborema Pegmatitic Province, Northeast Brazil. Anais da Academia Brasileira de Ciências, 77(1), 169-182.
[MinRec 29:196]
  • São Paulo
    • Cajati
[MinRec 15:266]
Canada
 
  • British Columbia
    • Kamloops Mining Division
      • Blue River carbonatites
        • Verity claim
Blue River Carbonatites, British Columbia- Primary Exploration Targets for Tantalum, G.J. Simandle,P.C. Jones, M. Rotella Exploration and Mining in British Columbia - 2001, B. C. Mines Report, pg 123-131 (http://www.commerceresources.com/i/pdf/05-BCGOVRREPORT.pdf)
  • Manitoba
    • Lac-du-Bonnet area
      • Greer Lake
M. Masau, P. Cerny, M.A. Cooper, R. Chapman & J. Grice (2002) Can. Mineral. 40, 1649-1655
  • Ontario
Grice, Joel D. (1989) Bancroft: the Mineral Capital of Canada. In: Famous mineral localities of Canada. Published by Fitzhenry & Whiteside Limited & the National Museum of Natural Sciences, 190 pages, 92-99; 162-165.
    • Haliburton County
      • Cardiff Township
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31D16NE00172.html
    • Hastings County
[www.johnbetts-fineminerals.com]
      • Monteagle Township
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31F04NW00003.html
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31F04NW00018.html; Hewitt D.F. (1954) Geology of Monteagle and Carlow Townships, Ontario Department of Mines, Sixty-Third Annual Report, ARV63, Pt.6, P.48.
American Mineralogist 27:226; Hugh S. Spence (1930) Pegmatite minerals of Ontario and Quebec. American Mineralogist 15:430-450; Hewitt, D. F. (1967) Pegmatite Mineral Resources of Ontario. Geological Survey of Canada Industrial Mineral Report 21; http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31F04NW00023.html
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31F04NW00057.html
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31F04NW00185.html
Hewitt D.F. (1967) Uranium and Thorium Deposits of Southern Ontario, Ontario Department of Mines, Mineral Deposit Circular 4, p.45.
    • Nipissing District
      • BMA 565884 Township
        • Manitou Island Complex
Berger, V.I., Singer, D.A., and Orris, G.J. (2009): USGS Open-File Report 09-1139
  • Québec
    • Laurentides
      • Deux-Montagnes RCM
        • Oka
          • Oka complex
ZUREVINSKI, S.E. AND MITCHELL, R.H. (2004) Extreme compositional variation of pyrochlore-group minerals at the Oka carbonatite complex, Canadian Mineralogist, 42, 1159-1168.
ZUREVINSKI, S.E. AND MITCHELL, R.H. (2004) Extreme compositional variation of pyrochlore-group minerals at the Oka carbonatite complex, Canadian Mineralogist, 42, 1159-1168.
    • Nord-du-Québec
      • Baie-James
        • Otish Mts
SASSANO, G. & ROCHELEAU, M. (1987) Quelques minéraux d'uranium des Bassin d'Otish et de Mistassini, Québec. Canadian Mineralogist 25, 185-193.
China
 
  • Liaoning
    • Dandong
      • Kuandian County
MOU, B., & YAN, G. (1992). Geological features of Triassic alkaline and subalkaline igneous complexes in the Yan-Liao area. ACTA GEOLOGICA SINICA-ENGLISH EDITION, 5(4), 339-355. Saima Deposit Research Group. (1978). Uranium deposit in the Saima alkaline massif, Northeast China. Sci. Sinica, 21, 365-389. Wu, F. Y., Yang, Y. H., Marks, M. A., Liu, Z. C., Zhou, Q., Ge, W. C., ... & Markl, G. (2010). In situ U–Pb, Sr, Nd and Hf isotopic analysis of eudialyte by LA-(MC)-ICP-MS. Chemical Geology, 273(1-2), 8-34. Wu, B., Wang, R. C., Yang, J. H., Wu, F. Y., Zhang, W. L., Gu, X. P., & Zhang, A. C. (2015). Wadeite (K2ZrSi3O9), an alkali-zirconosilicate from the Saima agpaitic rocks in northeastern China: Its origin and response to multi-stage activities of alkaline fluids. Lithos, 224, 126-142.
Saima Deposit Research Group, Beijing Institute of Uranium Geology (1978): Scientia Sinica 11(3), 365-389
Czech Republic
 
  • Moravian-Silesian Region
    • Bruntál District
      • Praděd (Altvater)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
  • Olomouc Region
    • Šumperk District
      • Maršíkov (Marchendorf)
Novák, M.: Maršíkov - Scheibengraben. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 38-41.
  • South Bohemian Region
    • Písek District
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
  • South Moravian Region
    • Brno-Country District
      • Tišnov
        • Drahonín
Škoda, R., Novák, M.: Akcesorické Nb-Ta-Ti minerály z pegmatitu v uranovém dole Drahonín, strážecké moldanubikum. Acta Musei Moraviae, Scientiae geologicae, 2004, roč. 89, s. 55 - 66.
Denmark
 
  • Greenland
    • Qeqqata
      • Maniitsoq Island
        • Maniitsoq
Petersen, O. V. and Secher, K. (1993): The minerals of Greenland, The Mineralogical Record, Vol. 24(2), 1-65
Egypt
 
  • Red Sea
    • Eastern Desert
Mineral. Deposita 43 (2008) 933-944.
Helmy, H. M., & Kaindl, R. Mineralogy and fluid inclusion study of the molybdenum-uranium-fluorite deposit, Gebel Gattar area, Eastern Desert, Egypt.
      • Sikait-Zabara region
Raslan, M. F., & Ali, M. A. (2011). Mineralogy and mineral chemistry of rare-metal pegmatites at Abu Rusheid granitic gneisses, South Eastern Desert, Egypt. Geologija, 54(2), 205-222.
Finland
 
  • Lapland
    • Savukoski
      • Tulppio
Vartiainen, H. 1980 The petrography, mineralogy and petrochemistry of the Sokli carbonative massif, northern Finland. Geological Survey of Finland, Bulletin, 313
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Ébreuil
        • Échassières
Rucheng Wang, Fontan, F., and Monchoux, P. (1994): Acta Petrologica et Mineralogica 13(2)
  • Occitanie
    • Hautes-Pyrénées
      • La Barthe-de-Neste
        • Avezac-Prat-Lahitte
MONCHOUX P., FONTAN F., DE PARSEVAL P., MARTIN R. F., WANG R. C. (2006) - Igneous albitite dikes in orogenic lherzolithes, Western Pyrénées, France: A possible source for corundum and alkali feldspar xenocrysts in basaltic terranes. I. Mineralogical Asssociations. The Canadian Mineralogist, Vol. 44, pp. 817-842.
Germany
 
  • Baden-Württemberg
    • Kaiserstuhl massif
      • Schelingen
        • Orberg - Badberg area
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab
        • Waidhaus
          • Hagendorf
Keck, E., (1989): Uran im Pegmatit von Hagendorf-Süd, Der Aufschluss, Vol. 40, 269-290
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Bell
Blass, G., Graf, HW., Kolitsch, U., Neue Funde und Mineralien aus der Eifel, Mineralienwelt 1/2002
      • Kruft
Blass, G.; Graf, H.W., Neue Mineralienfunde aus der Vulkaneifel , Mineralien-Welt 12/1, 17-25, 2001
      • Mendig
Blass, G.; Graf, H.W., Neue Mineralienfunde aus der Vulkaneifel, Mineralien-Welt 12/1, 17-25, 2001
Blass, G.; Graf, H.W., Neue Mineralienfunde aus der Vulkaneifel, Mineralien-Welt 12/1, 17-25, 2001
        • Wingertsberg
Blass, G.; Graf, H.W., Neue Mineralienfunde aus der Vulkaneifel , Mineralien-Welt 12/1, 17-25, 2001
Italy
 
  • Lazio
    • Metropolitan City of Rome Capital
Voltaggio M., Di Lisa G.A. (1995) - 230Th dating of uranpyrochlore in pyroclastic ejecta from the last products of explosive final activity of the Alban Hills volcanic complex (abs.). Periodico di Mineralogia, Roma, pp. 291-292
      • Sacrofano Caldera
        • Campagnano di Roma
AA. VV., 1996. Collezionare minerali. Hobby & Work.
    • Viterbo Province
No reference listed
  • Lombardy
    • Sondrio Province
      • Valchiavenna
        • Bregaglia Valley
AA. VV., 1996. Collezionare minerali. Hobby & Work.
Madagascar
 
  • Amoron'i Mania
    • Fandriana
      • Tsarazaza
[var: Samiresite] Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Lacroix, A. (1908): Les minéraux des filons de pegmatite á tourmaline lithique de Madagascar. Bulletin de la Société Francaise de Minéralogie 31: 218- 247
  • Vakinankaratra
    • Antsirabe II
      • Ibity
        • Sahatany Valley
Knut Edvard Larsen collection (XRD, metamict + SEM identified)
RRUFF specimen R060165
[var: Samiresite] Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 374
      • Tritriva
[var: Samiresite] Bull. Soc. franc.Mineral. 35 (1912), pp 84-92/ A.Lacroix: (1922) Mineralogie de Madagascar I ,p 283
Malawi
 
  • Northern Region
    • Chitipa
      • Songwe Complex
Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Myanmar
 
  • Shan State
    • Kyaukme District
      • Momeik Township
        • Molo quarter
          • Khetchel village (Cache village; Khat Che village)
Pavel M. Kartashov analytical data 2018, Sieghard Ellenberger specimen
Namibia
 
  • Erongo Region
    • Dâures
      • Brandberg Area
Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Norway
 
  • Aust-Agder
Hawthorne, F.C., Groat, L.A., Raudsepp, M., Ball, N.A., Kimata, M., Spike, F.D., Gaba, R., Halden N.M. & Lumpkin, G.R. (1991): Alphadecay damage of titanite. American Mineralogist, 76, 370-396
  • Telemark
    • Nome
Bjørlykke & Svinndal (1960) in Vokes, F.M. (ed) (1960): Mines in South and Central Norway. International Geological Congress XXI session, Norway. Norges Geologiske Undersøkelse, 212m, 1-73 (p.23); Neumann, H. (1985): Norges Mineraler. Norges Geologiske Undersøkelse Skrifter 68, (p.67)
  • Trøndelag
    • Snillfjord
      • Åstfjorden
Størseth, L. R. (2019) Thulittbergarten i Mjønestunnelen, Snillfjord, Trøndelag. Norsk Mineralsymposium 2019: 16-30
Paraguay
 
  • Amambay Department
Woolley, A.R. (1987) Alkaline rocks and carbonatites of the world. p 206. (British Museum of Natural History, London)
Poland
 
  • Lower Silesian Voivodeship
    • Dzierżoniów County
      • Piława Górna
PIECZKA et al. 2010: Nb-Ta minerals in pegmatites in the DSS mine at Piława Górna, Góry Sowie Block, southwestern Poland. Mineralogia - Special Papers, 37.
Łodziński M. & Pieczka A. 2008: (Nb-Ta)-oxide minerals from pegmatites of the Owiesno-Kietlice area in the Sowie Mts block, Southwestern Poland. Mineralogia - Special Papers, vol. 32, p. 107
Romania
 
  • Harghita
    • Ditrău (Ditró)
Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
Russia
 
  • Chelyabinsk Oblast
    • Vishnevye Mountains
Nedosekova, I.L. (2007): Geology of Ore Deposits 49(2), 129-146.
  • Irkutsk Oblast
Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., & Cherkasov, S. (2010). Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits*. Australian Journal of Earth Sciences, 57(6), 655-706
    • Lake Baikal area
Pavel M. Kartashov data
  • Murmansk Oblast
Subbotin, R. P. L. V. V., & Pakhomovsky, Y. A. (1998). A new type of scandium mineralization in phoscorites and carbonatites of the Kovdor massif, Russia. Canadian Mineralogist 36:971-980. ; Zaitsev, A. N., Williams, C. T., Jeffries, T. E., Strekopytov, S., Moutte, J., Ivashchenkova, O. V., ... & Borozdin, A. P. (2014). Rare earth elements in phoscorites and carbonatites of the Devonian Kola Alkaline Province, Russia: examples from Kovdor, Khibina, Vuoriyarvi and Turiy Mys complexes. Ore Geology Reviews, 61, 204-225.
www.koeln.netsurf.de/~w.steffens/lovo.htm
  • Tuva
P.M. Kartashov data
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica Co.
      • Brusno
Uher, P. ,Černý, P., 1998 : Vzácnoprvková mineralizácia v granitových pegmatitoch Nízkych Tatier. Mineralia Slovaca, 30, 2,93 – 94
South Africa
 
  • North West
    • Bojanala Platinum District
R. Liferovich - L. Horváth p.c. (2004)
Sweden
 
  • Norrbotten County
    • Jokkmokk
Uganda
 
  • Western Region
    • Kabarole District
      • Fort Portal
Hogarth, D.D. & Horne, J.E.T. (1989) Non-metamict uranoan pyrochlore and uranpyrochlore from tuff near Ndale area, Uganda. Mineralogical Magazine: 53: 257-62
Ukraine
 
  • Zaporizhia Oblast
Greta J. Orris and Richard I. Grauch (2002) Rare Earth Element Mines, Deposits, and Occurrences. USGS Open File Report 02-189
    • Priazovske
Ryabchikov, I.D., Kogarko, L.N., Krivdik, S.G., and Ntaflos, T. (2008): Geology of Ore Deposits 50(6), 423-432.
  • Zhytomyr Oblast
P.M. Kartashov data
USA
 
  • Alaska
    • Yukon-Koyukuk Census Area
      • Hot Springs Mining District
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
  • Colorado
    • Chaffee Co.
      • Turret Mining District
Ralph Parkes
    • Fremont Co.
      • Eight Mile Park Pegmatite Mining District
Minerals of Colorado (1997) E.B. Eckel
    • Gunnison Co.
      • Quartz Creek Pegmatite Mining District
        • Brown Derby Mine
Minerals of Colorado (1997) E.B. Eckel
Minerals of Colorado (1997) Eckel, E. B.
    • Jefferson Co.
      • South Platte Pegmatite Mining District
    • Park Co.
Rudy Boloña identification and collection, collected by Jim Hall
  • Connecticut
    • Middlesex Co.
      • Portland
Specimen in collection of Andrew Kruegel
  • New Hampshire
    • Carroll Co.
      • Albany
Rocks and Minerals, (1990) 65:286-296
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
          • Franklin Mine
Chris O'Neill, microprobe data from Canadian Museum of Nature.
  • New Mexico
    • Mora Co.
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
Am Min 1953 p1090
    • Rio Arriba Co.
      • Petaca District
        • Cribbenville area
Michael N. Spilde, Steve Dubyk, Brian Salem, and William P. Moats, (2011) Rare earth bearing-minerals of the Petaca district, Rio Arriba County, New Mexico. New Mexico Geological Society Fall Field Conference Guidebook – 62 Geology of the Tusas Mountains and Ojo Caliente pp. 389-398.
    • San Miguel Co.
      • Elk Mountain District
Minerals of New Mexico 3rd ed.; Jahns, R. H., (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico, with Brief Descriptions of the Ojo Caliente District, Rio Arriba County, and the Elk Mountain District, San Miguel County. NMBMGR Bulletin 25.
    • Taos Co.
      • Picuris District
Minerals of New Mexico 3rd ed.
  • North Carolina
    • McDowell Co.
Joseph A.Mandarino and Malcolm E. Back, 2004, Fleischers Glossary of Mineral Species 2004, pg # 284
8th Dana,pg. 345 and 7th Dana,1944,pg.751,752 and 754
      • Spruce Pine Mining District
        • Spruce Pine
          • Greasy Creek Township
Genth,1891,pg.72 and pg.107
    • Yancey Co.
      • Spruce Pine Mining District
        • Burnsville
          • Hurricane Mountain
Genth,1875, Minerals of North Carolina,Appendix C to Kerr,W.C,Report Geological Survey of North Carolina,Raleigh,Vol.1.pg.79
  • Virginia
    • Amelia Co.
      • Amelia (Amelia Court House)
Minerals of Virginia 1990 by R. V. Dietrich; Pegau, A. A. (1932). Pegmatite deposits of Virginia. Virginia Geological Survey Bulletin No. 33.
  • Wisconsin
    • Marathon Co.
Cordura, W http://www.uwex.edu/wgnhs/Mineral%20Index/Minerals/pyrochlore.htm
        • Nine Mile Pluton
www.uwrf.edu/~wc01/pyrochlore.htm
Vietnam
 
  • Lai Châu Province
    • Phong Tho District
      • Mt Fansipan
Feldman l.G., Sarkisyan S.Sh., Boriskin V.P., Purusova S.P., Nguen Van Hoai, Chin Suan Ben (1987) Crystalline beckelite from Nam Se deposit (Northern Vietnam), - Mineralogicheskiy Zhurnal, v.9, N1, pp. 78-86 (in Rus.)
 
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