REE-Nb-Zr occurrence, Pennington Mountain, Aroostook County, Maine, USAi
| Regional Level Types | |
|---|---|
| REE-Nb-Zr occurrence | Occurrence |
| Pennington Mountain | Mountain |
| Aroostook County | County |
| Maine | State |
| USA | Country |
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Latitude & Longitude (WGS84):
46° 59' 33'' North , 68° 27' 42'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Winterville | 204 (2017) | 8.7km |
| Eagle Lake | 625 (2017) | 11.0km |
| Wallagrass | 583 (2017) | 18.3km |
| Stockholm | 282 (2017) | 25.0km |
| Perham | 451 (2017) | 26.0km |
Mindat Locality ID:
426175
Long-form identifier:
mindat:1:2:426175:2
GUID (UUID V4):
804744c1-46c4-42f1-a3b0-ec664be5f144
This occurrence was newly discovered by a regional multiparameter, airborne radiometric survey that revealed anomalously high equivalent Th (eTh) and U (eU), confirmed by a detailed ground radiometric survey and by portable X-Ray fluorescence (pXRF) and whole-rock analyses of representative rock samples. The mineralized area occurs within an elongate trachyte body (~1.2 km2) that intrudes Ordovician volcanic rocks. Geologic constraints suggest that the trachyte is also Ordovician in age. The eastern lobe (~900 × ~400 m) of the trachyte is pervasively brecciated with a matrix containing seams, lenses, and veinlets composed mainly of potassium feldspar, albite, and fine-grained zircon and monazite. Barite is locally abundant. Minor minerals within the matrix include columbite, bastnäsite, euxenite, chlorite, pyrite, sphalerite, and magnetite. The pXRF analyses of 22 samples collected from the eastern lobe demonstrate that this entire part of the trachyte is highly mineralized.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
22 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Aeschynite' References: |
| ⓘ Albite Formula: Na(AlSi3O8) References: |
| ⓘ 'Allanite Group' Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) References: |
| ⓘ Baryte Formula: BaSO4 References: |
| ⓘ 'Bastnäsite' Formula: (Ce/Nd/Y/REE)(CO3)F References: |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 References: |
| ⓘ Cassiterite Formula: SnO2 References: |
| ⓘ 'Chlorite Group' References: |
| ⓘ 'Clay minerals' References: |
| ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series' References: |
| ⓘ Eudialyte Formula: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 References: |
| ⓘ Euxenite-(Y) Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 References: |
| ⓘ 'Feldspar Group' References: |
| ⓘ 'Feldspar Group var. Perthite' References: |
| ⓘ Fersmite Formula: (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 References: |
| ⓘ Fluorite Formula: CaF2 References: |
| ⓘ Galena Formula: PbS References: |
| ⓘ Hematite Formula: Fe2O3 References: |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 References: |
| ⓘ 'K Feldspar' References: |
| ⓘ Loparite-(Ce) Formula: (Na,REE)2Ti2O6 References: |
| ⓘ Lueshite Formula: NaNbO3 References: |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: |
| ⓘ 'Monazite' Formula: REE(PO4) References: |
| ⓘ Natroniobite Formula: NaNbO3 References: |
| ⓘ 'Parisite' Formula: Ca(Ce/La/Nd/REE)2(CO3)3F2 References: |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 References: |
| ⓘ 'Pumpellyite Subgroup' Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A References: |
| ⓘ Pyrite Formula: FeS2 References: |
| ⓘ 'Pyrochlore Supergroup' Formula: A2-mD2X6-wZ1-n References: |
| ⓘ 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)' Formula: (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ 'Rhombohedral Carbonate' Formula: (Ca/Mg/Fe/Mn etc)CO3 References: |
| ⓘ Rutile Formula: TiO2 References: |
| ⓘ Rutile var. Ilmenorutile Formula: (Ti,Nb)O2 References: |
| ⓘ Siderite Formula: FeCO3 References: |
| ⓘ Sphalerite Formula: ZnS References: |
| ⓘ 'Synchysite' Formula: Ca(Ce/Nd/Y/REE)(CO3)2F References: |
| ⓘ Thorite Formula: Th(SiO4) References: |
| ⓘ Zircon Formula: Zr(SiO4) References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Natroniobite | 4.CC.30 | NaNbO3 |
| ⓘ | Lueshite | 4.CC.30 | NaNbO3 |
| ⓘ | Loparite-(Ce) | 4.CC.35 | (Na,REE)2Ti2O6 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile var. Ilmenorutile | 4.DB.05 | (Ti,Nb)O2 |
| ⓘ | 4.DB.05 | TiO2 | |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | Euxenite-(Y) | 4.DG.05 | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| ⓘ | Fersmite | 4.DG.05 | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| Group 9 - Silicates | |||
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Eudialyte | 9.CO.10 | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ | 'Parisite' | - | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| ⓘ | 'Pyrochlore Supergroup' | - | A2-mD2X6-wZ1-n |
| ⓘ | 'Feldspar Group var. Perthite' | - | |
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| ⓘ | 'Columbite-(Fe)-Columbite-(Mn) Series' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Synchysite' | - | Ca(Ce/Nd/Y/REE)(CO3)2F |
| ⓘ | 'Aeschynite' | - | |
| ⓘ | 'Pumpellyite Subgroup' | - | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
| ⓘ | 'Monazite' | - | REE(PO4) |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Clay minerals' | - | |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)' | - | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| ⓘ | 'Bastnäsite' | - | (Ce/Nd/Y/REE)(CO3)F |
| ⓘ | 'Rhombohedral Carbonate' | - | (Ca/Mg/Fe/Mn etc)CO3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| H | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
| H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| H | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| C | Carbon | |
| C | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| C | ⓘ Siderite | FeCO3 |
| C | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| C | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| C | ⓘ Rhombohedral Carbonate | (Ca/Mg/Fe/Mn etc)CO3 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| O | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| O | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| O | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Loparite-(Ce) | (Na,REE)2Ti2O6 |
| O | ⓘ Lueshite | NaNbO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Monazite | REE(PO4) |
| O | ⓘ Natroniobite | NaNbO3 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| O | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| O | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| O | ⓘ Rhombohedral Carbonate | (Ca/Mg/Fe/Mn etc)CO3 |
| F | Fluorine | |
| F | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| F | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| F | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Na | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Na | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Na | ⓘ Loparite-(Ce) | (Na,REE)2Ti2O6 |
| Na | ⓘ Lueshite | NaNbO3 |
| Na | ⓘ Natroniobite | NaNbO3 |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Rhombohedral Carbonate | (Ca/Mg/Fe/Mn etc)CO3 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| P | Phosphorus | |
| P | ⓘ Monazite | REE(PO4) |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Cl | Chlorine | |
| Cl | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Ca | Calcium | |
| Ca | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Ca | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Ca | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ca | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
| Ca | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ca | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Ca | ⓘ Rhombohedral Carbonate | (Ca/Mg/Fe/Mn etc)CO3 |
| Ti | Titanium | |
| Ti | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ti | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Ti | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
| Ti | ⓘ Loparite-(Ce) | (Na,REE)2Ti2O6 |
| Ti | ⓘ Rutile | TiO2 |
| Mn | Manganese | |
| Mn | ⓘ Rhombohedral Carbonate | (Ca/Mg/Fe/Mn etc)CO3 |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Rhombohedral Carbonate | (Ca/Mg/Fe/Mn etc)CO3 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Y | Yttrium | |
| Y | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Y | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Y | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Zr | Zirconium | |
| Zr | ⓘ Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Nb | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Nb | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Nb | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
| Nb | ⓘ Lueshite | NaNbO3 |
| Nb | ⓘ Natroniobite | NaNbO3 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| La | Lanthanum | |
| La | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ce | Cerium | |
| Ce | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Ce | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ce | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Ce | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ce | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Nd | Neodymium | |
| Nd | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Nd | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Nd | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Ta | Tantalum | |
| Ta | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Ta | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ta | ⓘ Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Th | Thorium | |
| Th | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Th | ⓘ Thorite | Th(SiO4) |
| U | Uranium | |
| U | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| U | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
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