Hydroxyplumbopyrochlore
A valid IMA mineral species
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About Hydroxyplumbopyrochlore
Formula:
(Pb1.5◻0.5)Nb2O6(OH)
Also (previously) given as (Pb,Ca)2-x(Nb,Ti,Ta)2O6(OH) (x = ~0.5)
Colour:
pale yellow to pale brown
Lustre:
Adamantine
Specific Gravity:
6.474 (Calculated)
Crystal System:
Isometric
Member of:
The OH- and Pb-dominant member of the group.
First find was made in 1992 on Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia.
Approved in 2020, with the type locality being the Jabal Sayid peralkaline granitic complex, Saudi Arabia.
First find was made in 1992 on Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia.
Approved in 2020, with the type locality being the Jabal Sayid peralkaline granitic complex, Saudi Arabia.
Unique Identifiers
Mindat ID:
43673
Long-form identifier:
mindat:1:1:43673:3
GUID
(UUID V4):
(UUID V4):
a37c65c8-051c-4fec-8b55-bea035ff8845
IMA Classification of Hydroxyplumbopyrochlore
Approved
IMA Formula:
(Pb1.5◻0.5)Nb2O6(OH)
Classification of Hydroxyplumbopyrochlore
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
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
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Hppcl | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Hydroxyplumbopyrochlore
Adamantine
Transparency:
Transparent
Comment:
"adamantine to transparent"
Colour:
pale yellow to pale brown
Streak:
white
Comment:
mean microhardness: 463.4 kg/mm2
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
not observed
Fracture:
Conchoidal
Density:
6.474 g/cm3 (Calculated)
Optical Data of Hydroxyplumbopyrochlore
Chemistry of Hydroxyplumbopyrochlore
Mindat Formula:
(Pb1.5◻0.5)Nb2O6(OH)
Also (previously) given as (Pb,Ca)2-x(Nb,Ti,Ta)2O6(OH) (x = ~0.5)
Also (previously) given as (Pb,Ca)2-x(Nb,Ti,Ta)2O6(OH) (x = ~0.5)
Elements listed:
Crystallography of Hydroxyplumbopyrochlore
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Setting:
Fd3m
Cell Parameters:
a = 10.558(2) Å
Unit Cell V:
1,176.91 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.051 Å | (8) |
| 3.043 Å | (100) |
| 2.636 Å | (42) |
| 1.862 Å | (36) |
| 1.591 Å | (43) |
| 1.521 Å | (8) |
| 1.320 Å | (6) |
| 1.183 Å | (12) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Hydroxyplumbopyrochlore
General Appearance of Type Material:
pseudomorphoses after unknown tabular PbNb-mineral-II in complex pseudomorphoses after tetragonal PbNb-silicate-I; from the abstract: euhedral octahedra, slightly rhombic dodecahedra and cubes, or their combination, with crystal sizes in the 0.01-0.06 mm
Place of Conservation of Type Material:
mineralogical collections of the Geological Museum of China, no. 16 Yangrou Hutong, Xisi, Beijing 100031, People's Republic of China, catalogue number M13239
Geological Setting of Type Material:
pegmatite of alkaline granites
Associated Minerals at Type Locality:
Synonyms of Hydroxyplumbopyrochlore
Relationship of Hydroxyplumbopyrochlore to other Species
Member of:
Other Members of this group:
| Cesiokenopyrochlore | ◻Nb2(O,OH)6(Cs,◻) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Fluorcalciopyrochlore | (Ca,Na)2(Nb, Ti)2O6F | Iso. |
| Fluorhydropyrochlore | A possible new species (See discussion in Atencio et al. | |
| Fluorkenopyrochlore | (◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F | |
| Fluornatropyrochlore | (Na,Pb,Ca,REE,U)2Nb2O6F | Iso. m3m (4/m 3 2/m) |
| Fluorplumbopyrochlore | (Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6F | Iso. |
| Fluorstrontiopyrochlore | (Sr,◻)2Nb2(O,OH)6F | |
| Hydrokenopyrochlore | (◻,x)2Nb2O6(H2O,Cs) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Hydropyrochlore | (H2O,◻)2Nb2(O,OH)6(H2O) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Hydroxycalciopyrochlore | (Ca,Na,U,◻)2(Nb,Ti)2O6(OH) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Hydroxykenopyrochlore | (◻,Ce,Ba)2(Nb,Ti)2O6(OH,F) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Hydroxymanganopyrochlore | (Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) | Iso. m3 (2/m 3) |
| Hydroxynatropyrochlore | (Na,Ca,Ce)2Nb2O6(OH) | Iso. m3m (4/m 3 2/m) : Fd3m |
| Kenoplumbopyrochlore | (Pb,◻)Nb2O6(◻,O) | |
| Oxycalciopyrochlore | Ca2Nb2O6O | Iso. m3m (4/m 3 2/m) : Fd3m |
| Oxynatropyrochlore | (Na,Ca,U)2Nb2O6(O,OH) | |
| Oxyplumbopyrochlore | Pb2Nb2O6O | |
| Oxyyttropyrochlore-(Y) | (Y,◻)2Nb2O6O | |
| Unnamed (Sb-analogue of Hydroxymanganopyrochlor) | (Mn,Ca,Y)2(Sb,Ti)2O6(OH) |
Common Associates
Associated Minerals Based on Photo Data:
| 4 photos of Hydroxyplumbopyrochlore associated with Columbite-(Fe) | Fe2+Nb2O6 |
| 2 photos of Hydroxyplumbopyrochlore associated with Microcline | K(AlSi3O8) |
| 1 photo of Hydroxyplumbopyrochlore associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 4.DH. | Fluornatropyrochlore | (Na,Pb,Ca,REE,U)2Nb2O6F |
| 4.DH. | Roméite Group | A2(Sb5+)2O6Z |
| 4.DH. | Hydroxykenomicrolite | (◻,Na,Sb3+)2Ta2O6(OH) |
| 4.DH. | Fluornatroroméite | (Na,Ca)2Sb2(O,OH)6F |
| 4.DH. | Oxyplumboroméite | Pb2Sb2O6O |
| 4.DH. | Cesiokenopyrochlore | ◻Nb2(O,OH)6(Cs,◻) |
| 4.DH. | Oxyyttrobetafite-(Y) | Y2Ti2O6O |
| 4.DH.05 | Brannerite | UTi2O6 |
| 4.DH.05 | Orthobrannerite | U4+U6+Ti4O12(OH)2 |
| 4.DH.05 | Thorutite | (Th,U,Ca)Ti2(O,OH)6 |
| 4.DH.10 | Kassite | CaTi2O4(OH)2 |
| 4.DH.10 | Lucasite-(Ce) | CeTi2(O,OH)6 |
| 4.DH.15 va | Alumotungstite | ◻2W2O6(H2O) |
| 4.DH.15 | Bismutomicrolite (of Hogarth 1977) | |
| 4.DH.15 | Hydroplumboelsmoreite | (Pb,◻)(W,Fe3+)2O6 · H2O |
| 4.DH.15 | Hydropyrochlore | (H2O,◻)2Nb2(O,OH)6(H2O) |
| 4.DH.15 | Plumbomicrolite (of Hogarth 1977) | |
| 4.DH.15 | Stibiomicrolite (of Groat et al.) | |
| 4.DH.15 | Strontiopyrochlore (of Hogarth 1977) | A2Nb2(O,OH)6Z |
| 4.DH.15 | Fluornatromicrolite | (Na1.5Bi0.5)Ta2O6F |
| 4.DH.15 | Bismutopyrochlore (of Chukanov et al.) | (Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH) |
| 4.DH.15 | Hydrokenoelsmoreite | ◻2W2O6(H2O) |
| 4.DH.15 | Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
| 4.DH.15 | Oxycalciobetafite | Ca2(Ti,Nb)2O6O |
| 4.DH.15 va | Yttromicrolite (of Hogarth) | (Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7 |
| 4.DH.15 | Oxynatropyrochlore | (Na,Ca,U)2Nb2O6(O,OH) |
| 4.DH.15 | Hydroxycalciopyrochlore | (Ca,Na,U,◻)2(Nb,Ti)2O6(OH) |
| 4.DH.15 | Fluorcalciopyrochlore | (Ca,Na)2(Nb, Ti)2O6F |
| 4.DH.15 | Oxycalciopyrochlore | Ca2Nb2O6O |
| 4.DH.15 | Fluorstrontiopyrochlore | (Sr,◻)2Nb2(O,OH)6F |
| 4.DH.15 | Oxyplumbopyrochlore | Pb2Nb2O6O |
| 4.DH.15 | Kenoplumbopyrochlore | (Pb,◻)Nb2O6(◻,O) |
| 4.DH.15 | Oxyyttropyrochlore-(Y) | (Y,◻)2Nb2O6O |
| 4.DH.15 | Fluorkenopyrochlore | (◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F |
| 4.DH.15 | Oxyuranobetafite | (U,Ca,◻)2(Ti,Nb)2O6O |
| 4.DH.15 | Oxycalciomicrolite | Ca2Ta2O6O |
| 4.DH.15 | Oxystannomicrolite | Sn2Ta2O6O |
| 4.DH.15 | Kenoplumbomicrolite | (Pb,◻)2Ta2O6(◻,OH,O) |
| 4.DH.15 | Oxystibiomicrolite | (Sb3+,Ca)2Ta2O6O |
| 4.DH.15 | Hydromicrolite | (H2O,◻)2Ta2(O,OH)6(H2O) |
| 4.DH.15 | Hydrokenomicrolite | (◻,H2O)2Ta2(O,OH)6(H2O) |
| 4.DH.15 | Hydroxymanganopyrochlore | (Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) |
| 4.DH.15 | Hydroxycalciomicrolite | Ca1.5Ta2O6(OH) |
| 4.DH.15 | Fluorplumbopyrochlore | (Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6F |
| 4.DH.15 | Oxynatromicrolite | (Na,Ca,U)2(Ta,Nb)2O6(O,F) |
| 4.DH.15 | Fluorhydropyrochlore | |
| 4.DH.15 | Hydroxykenoelsmoreite | (◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH) |
| 4.DH.15 | Hydrokenopyrochlore | (◻,x)2Nb2O6(H2O,Cs) |
| 4.DH.15 | Hydroxykenopyrochlore | (◻,Ce,Ba)2(Nb,Ti)2O6(OH,F) |
| 4.DH.15 | Hydroxynatropyrochlore | (Na,Ca,Ce)2Nb2O6(OH) |
| 4.DH.15 | Hydroxynatromicrolite | (Na,Bi3+,◻)2Ta2O6(OH) |
| 4.DH.15 | Unnamed (Sb-analogue of Hydroxymanganopyrochlor) | (Mn,Ca,Y)2(Sb,Ti)2O6(OH) |
| 4.DH.15 | Oxybismutomicrolite | (Bi1.33◻0.67)Σ2Ta2O6O |
| 4.DH.20 | Bindheimite | Pb2Sb2O6O |
| 4.DH.20 | Hydroxycalcioroméite | (Ca,Sb3+)2(Sb5+,Ti)2O6(OH) |
| 4.DH.20 | Monimolite | Pb2Sb5+2O7 |
| 4.DH.20 | Cuproroméite | Cu2Sb2(O,OH)7 |
| 4.DH.20 | Stetefeldtite | Ag2Sb2(O,OH)7 |
| 4.DH.20 | Stibiconite | Sb3+Sb5+2O6(OH) |
| 4.DH.20 | Fluorcalcioroméite | (Ca,Na,◻)2Sb5+2(O,OH)6F |
| 4.DH.20 | Oxycalcioroméite | Ca2Sb2O6O |
| 4.DH.20 | Hydroxyferroroméite | (Fe2+1.5◻0.5)Sb5+2O6(OH) |
| 4.DH.25 | Rosiaite | PbSb5+2O6 |
| 4.DH.30 | Zirconolite | CaZrTi2O7 |
| 4.DH.30 | Laachite | (Ca,Mn)2Zr2Nb2TiFeO14 |
| 4.DH.30 | Nöggerathite-(Ce) | (Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 |
| 4.DH.30 | Stefanweissite | (Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 |
| 4.DH.35 | Liandratite | U(Nb,Ta)2O8 |
| 4.DH.35 | Petscheckite | UFe(Nb,Ta)2O8 |
| 4.DH.40 | Ingersonite | Ca3Mn2+Sb5+4O14 |
| 4.DH.45 | Pittongite | Na0.22(W,Fe3+)(O,OH)3 · 0.44H2O |
| 4.DH.50 | Tazzoliite | Ba4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x) |
Fluorescence of Hydroxyplumbopyrochlore
non-fluorescent
Other Information
Notes:
Raman spectroscopy: OH bands present, water bands missing
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 Hydroxyplumbopyrochlore
mindat.org URL:
https://www.mindat.org/min-43673.html
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References for Hydroxyplumbopyrochlore
Reference List:
Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2020) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) - Newsletter 54. European Journal of Mineralogy, 32 (2) 275-283 doi:10.5194/ejm-32-275-2020
Localities for Hydroxyplumbopyrochlore
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Mongolia | |
| Kartashov P.M. et al. (1992) |
Russia | |
| Sharygin +9 other references |
Saudi Arabia (TL) | |
| Li et al. (2020) |
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Khaldzan Buragtag massif, Myangad District, Khovd Province, Mongolia