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Bismutopyrochlore (of Chukanov et al.)

A discredited species name
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07916150017271928732565.jpg
Bismutopyrochlore (of Chukanov et al.), etc.

Pegmatite localities, Kukurt river, Gorno-Badakhshan, Tajikistan
06920320017271928762632.jpg
Bismutopyrochlore (of Chukanov et al.), etc.

Mica Creek, City of Mount Isa, Queensland, Australia
07916150017271928732565.jpg
Bismutopyrochlore (of Chukanov et al.), etc.

Pegmatite localities, Kukurt river, Gorno-Badakhshan, Tajikistan
06920320017271928762632.jpg
Bismutopyrochlore (of Chukanov et al.), etc.

Mica Creek, City of Mount Isa, Queensland, Australia
07916150017271928732565.jpg
Bismutopyrochlore (of Chukanov et al.), etc.

Pegmatite localities, Kukurt river, Gorno-Badakhshan, Tajikistan
06920320017271928762632.jpg
Bismutopyrochlore (of Chukanov et al.), etc.

Mica Creek, City of Mount Isa, Queensland, Australia
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About Bismutopyrochlore (of Chukanov et al.)Hide

Formula:
(Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH)
Colour:
Black
Lustre:
Vitreous
Hardness:
5
Crystal System:
Amorphous
Name:
From composition and relationship to pyrochlore.
This page provides mineralogical data about Bismutopyrochlore (of Chukanov et al.).


Unique IdentifiersHide

Mindat ID:
7065
Long-form identifier:
mindat:1:1:7065:8

IMA Classification of Bismutopyrochlore (of Chukanov et al.)Hide

IMA status:
Discredited
Approval history:
1998: Approved as bismutopyrochlore by IMA (IMA 1998-059).
Discredited due to a new revised nomenclature of the pyrochlore supergroup by IMA in 2010 (Atencio et al. (2010).

Classification of Bismutopyrochlore (of Chukanov et al.)Hide

Strunz-mindat (2026):
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

Physical Properties of Bismutopyrochlore (of Chukanov et al.)Hide

Lustre:
Vitreous
Colour:
Black
Streak:
Yellow
Hardness:
5 on Mohs scale

Chemistry of Bismutopyrochlore (of Chukanov et al.)Hide

Mindat Formula:
(Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH)
Element Weights:
Element% weight
Bi58.311 %
Nb25.923 %
O15.625 %
H0.141 %

Calculated from ideal end-member formula.
Elements listed:
Bi, Ca, H, Nb, O, Pb, U - search for minerals with similar chemistry

Crystallography of Bismutopyrochlore (of Chukanov et al.)Hide

Crystal System:
Amorphous

First Recorded Occurrence of Bismutopyrochlore (of Chukanov et al.)Hide

Synonyms of Bismutopyrochlore (of Chukanov et al.)Hide

Other Language Names for Bismutopyrochlore (of Chukanov et al.)Hide

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Bismutopyrochlore (of Chukanov et al.) associated with Columbite-(Mn)Mn2+Nb2O6
2 photos of Bismutopyrochlore (of Chukanov et al.) associated with 'Bismuth Ochre'
1 photo of Bismutopyrochlore (of Chukanov et al.) associated with 'Uranpyrochlore (of Hogarth 1977)'(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)

Related Minerals - Strunz-mindat GroupingHide

4.DH.Cesiokenopyrochlore◻Nb2(O,OH)6(Cs,◻) Iso. m3m(4/m32/m) : Fd3m
4.DH.Roméite GroupA2(Sb5+)2O6Z
4.DH.OxyplumboroméitePb2Sb2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6FIso. m3m(4/m32/m)
4.DH.Hydroxykenomicrolite(◻,Na,Sb3+)2Ta2O6(OH,Cs)Iso. m3m(4/m32/m) : Fd3m
4.DH.'Fluornatroroméite'(Na,Ca)2Sb2(O,OH)6F
4.DH.Oxyyttrobetafite-(Y)Y2Ti2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.05Thorutite(Th,U,Ca)Ti2(O,OH)6Mon.
4.DH.05OrthobranneriteU4+U6+Ti4O12(OH)2Orth.
4.DH.05BranneriteUTi2O6Mon. 2/m : B2/m
4.DH.10KassiteCaTi2O4(OH)2Mon. 2/m : P21/b
4.DH.10Lucasite-(La)Mon. 2 : B2
4.DH.10Lucasite-(Ce)CeTi2(O,OH)6Mon.
4.DH.15'Fluorhydropyrochlore'
4.DH.15Hydrokenoelsmoreite◻2W2O6(H2O)Iso. m3m(4/m32/m) : Fd3m
4.DH.15'Hydroxynatromicrolite'(Na,Bi3+,◻)2Ta2O6(OH)Iso. m3m(4/m32/m) : Fd3m
4.DH.15Hydroplumboelsmoreite(Pb,◻)(W,Fe3+)2O6 · H2OIso. m3m(4/m32/m) : Fd3m
4.DH.15Hydropyrochlore(H2O,◻)2Nb2(O,OH)6(H2O)Iso. m3m(4/m32/m) : Fd3m
4.DH.15'Unnamed (Sb-analogue of Hydroxymanganopyrochlor)'(Mn,Ca,Y)2(Sb,Ti)2O6(OH)
4.DH.15Hydroxynatropyrochlore(Na,Ca,Ce)2Nb2O6(OH)Iso. m3m(4/m32/m) : Fd3m
4.DH.15Hydrokenopyrochlore(◻,x)2Nb2O6(H2O,Cs)Iso. m3m(4/m32/m) : Fd3m
4.DH.15Oxybismutomicrolite(Bi1.33◻0.67)Σ2Ta2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.15Kenomicrolite◻2Ta2[O4(OH)2]◻Iso. m3m(4/m32/m) : Fd3m
4.DH.15Fluornatromicrolite(Na1.5Bi0.5)Ta2O6FIso. m3m(4/m32/m) : Fd3m
4.DH.15'Oxynatropyrochlore'(Na,Ca,U)2Nb2O6(O,OH)
4.DH.15Hydroxycalciopyrochlore(Ca,Na,U,◻)2(Nb,Ti)2O6(OH)Iso. m3m(4/m32/m) : Fd3m
4.DH.15Fluorcalciopyrochlore(Ca,Na)2(Nb,Ti)2O6FIso.
4.DH.15OxycalciopyrochloreCa2Nb2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.15'Fluorstrontiopyrochlore'(Sr,◻)2Nb2(O,OH)6F
4.DH.15OxyplumbopyrochlorePb2Nb2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.15'Fluorplumbopyrochlore'(Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6FIso.
4.DH.15'Bismutomicrolite (of Hogarth 1977)'Iso. m3m(4/m32/m) : Fd3m
4.DH.15'Kenoplumbopyrochlore'(Pb,◻)Nb2O6(◻,O)
4.DH.15Hydroxyplumbopyrochlore (Pb1.5◻0.5)Nb2O6(OH)Iso. m3m(4/m32/m) : Fd3m
4.DH.15'Stibiomicrolite (of Groat et al.)'
4.DH.15'Oxyyttropyrochlore-(Y)'(Y,◻)2Nb2O6O
4.DH.15'Fluorkenopyrochlore'(◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F
4.DH.15HydroxycalciomicroliteCa1.5Ta2O6(OH)Iso. 432 : P4232
4.DH.15'Strontiopyrochlore (of Hogarth 1977)'(Sr,Ce,Ca)0.66(Nb,Fe)2(O,OH)7
4.DH.15 va'Alumotungstite'◻2W2O6(H2O)Iso. m3m(4/m32/m) : Fd3m
4.DH.15'Oxycalciobetafite'Ca2(Ti,Nb)2O6O
4.DH.15'Oxyuranobetafite'(U,Ca,◻)2(Ti,Nb)2O6O
4.DH.15Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6FIso. m3m(4/m32/m) : Fd3m
4.DH.15OxycalciomicroliteCa2Ta2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.15OxystannomicroliteSn2Ta2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.15Kenoplumbomicrolite(Pb,◻)2Ta2O6(◻,OH,O)Iso.
4.DH.15Oxynatromicrolite(Na,Ca,U)2(Ta,Nb)2O6(O,F)Iso. m3m(4/m32/m) : Fd3m
4.DH.15Oxystibiomicrolite(Sb3+,Ca)2Ta2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.15'Hydromicrolite'(H2O,◻)2Ta2(O,OH)6(H2O)
4.DH.15'Plumbomicrolite (of Hogarth 1977)'
4.DH.15Hydrokenomicrolite(◻,H2O)2Ta2(O,OH)6(H2O)Iso. m3m(4/m32/m)
4.DH.15Hydroxykenoelsmoreite(◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH)Trig. 3 : R3
4.DH.15 va'Yttromicrolite (of Hogarth)'(Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7Iso. m3m(4/m32/m) : Fd3m
4.DH.15Hydroxykenopyrochlore(◻,Ce,Ba)2(Nb,Ti)2O6(OH,F)Iso. m3m(4/m32/m) : Fd3m
4.DH.15Hydroxymanganopyrochlore(Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) Iso. m3(2/m3)
4.DH.20'Cuproroméite'Cu2Sb2(O,OH)7Iso.
4.DH.20Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)Iso. m3m(4/m32/m) : Fd3m
4.DH.20BindheimitePb2Sb2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.20Hydroxyferroroméite(Fe2+1.5◻0.5)Sb5+2O6(OH)Iso. m3m(4/m32/m) : Fd3m
4.DH.20Fluorcalcioroméite(Ca,Na,◻)2Sb5+2(O,OH)6FIso. m3m(4/m32/m) : Fd3m
4.DH.20OxycalcioroméiteCa2Sb2O6OIso. m3m(4/m32/m) : Fd3m
4.DH.20StetefeldtiteAg2Sb2(O,OH)7Iso.
4.DH.20StibiconiteSb3+Sb5+2O6(OH) Iso. m3m(4/m32/m)
4.DH.20MonimolitePb2Sb5+2O7Iso. m3m(4/m32/m)
4.DH.25RosiaitePbSb5+2O6Trig. 3m(32/m) : P31m
4.DH.30Stefanweissite(Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14Orth. mmm(2/m2/m2/m) : Cmca
4.DH.30ZirconoliteCaZrTi2O7Orth.
4.DH.30Laachite(Ca,Mn)2Zr2Nb2TiFeO14Mon. 2/m : B2/b
4.DH.30Nöggerathite-(Ce)(Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14Orth. mmm(2/m2/m2/m) : Cmca
4.DH.35LiandratiteU(Nb,Ta)2O8Trig. 3m(32/m) : P31m
4.DH.35PetscheckiteUFe(Nb,Ta)2O8Hex.
4.DH.40IngersoniteCa3Mn2+Sb5+4O14Trig. 32 : P3121
4.DH.45PittongiteNa0.22(W,Fe3+)(O,OH)3 · 0.44H2OHex. 6m2 : P6m2
4.DH.50TazzoliiteBa4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x) Orth. mmm(2/m2/m2/m) : Fmmm

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.

Internet Links for Bismutopyrochlore (of Chukanov et al.)Hide

References for Bismutopyrochlore (of Chukanov et al.)Hide

Localities for Bismutopyrochlore (of Chukanov et al.)Hide

Showing 6 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
 
  • Queensland
    • City of Mount Isa
Pavel M. Kartashov analythical data of ...
Canada
 
  • Northwest Territories
Ercit et al. (2003)
Germany
 
  • Hesse
    • Darmstadt
      • Darmstadt-Dieburg
        • Fischbachtal
          • Lichtenberg
Belendorff (2021)
Russia
 
  • Chukotka Autonomous Okrug
    • Chukchi Peninsula (Chukotka Peninsula; Chukotski Peninsula)
Baksheev et al. (2025)
  • Khabarovsk Krai
    • Verkhnebureinsky District
Alekseev et al. (2018)
Tajikistan (FRL)
 
  • Gorno-Badakhshan
    • Rangkul' Highlands
AmMin 85:1561] +1 other reference
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