Allanite-(Ce)
A valid IMA mineral species - grandfathered
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About Allanite-(Ce)
Formula:
(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Often slightly radioactive due to minor U and/or Th contents; therefore often metamict.
Colour:
Brown to black
Lustre:
Vitreous, Resinous
Hardness:
5½ - 6
Specific Gravity:
3.5 - 4.2
Crystal System:
Monoclinic
Member of:
Name:
Named in 1810 by Thomas Thomson for Thomas Allan (17 July 1777, Edinburgh, Scotland - 12 September 1833, Morpeth, Northumberland, England), Scottish banker and mineralogist, who first observed the mineral. The Levinson rule suffix, -(Ce), was later added to designate this species as the Ce-dominant member among all allanites.
Type Locality:
Allanite Group of the Epidote Supergroup.
Often forms solid solutions with epidote. May also exist in a solid solution with CaCeAl2(Fe3+2/3□1/3)[Si2O7][SiO4]O(OH) phase (Guastoni et al., 2017).
The Ca analogue of uedaite-(Ce).
Beryllium-rich varieties are known from the Polish Karkonosze Mts.
Compare UM1989-32-SiO:AlCaFeHREE.
Often forms solid solutions with epidote. May also exist in a solid solution with CaCeAl2(Fe3+2/3□1/3)[Si2O7][SiO4]O(OH) phase (Guastoni et al., 2017).
The Ca analogue of uedaite-(Ce).
Beryllium-rich varieties are known from the Polish Karkonosze Mts.
Compare UM1989-32-SiO:AlCaFeHREE.
Unique Identifiers
Mindat ID:
125
Long-form identifier:
mindat:1:1:125:4
Similar Names
| Albanite | A synonym of 'Clinopyroxene leucitite' | |
| Aldanite | A variety of Thorianite | (Th,Pb)O2 ? |
| Allagite | ||
| Allanit | A synonym of 'Allanite' | |
| Allanite | A synonym of Allanite Group | |
| Allanite-(La) | A valid IMA mineral species | (CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Allanite-(Nd) | A valid IMA mineral species | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Allanite-(Sm) | A valid IMA mineral species | (CaSm)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Allanite-(Y) | A valid IMA mineral species - grandfathered | (CaY)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Allanitt-(Y) | A synonym | |
| Allenite | A synonym of Pentahydrite | |
| Alnöite | A synonym of 'Lamprophyric-pyroxene-calcite-biotite olivine-melilitite' | |
| Alunite | A valid IMA mineral species - grandfathered | KAl3(SO4)2(OH)6 |
| Alvanite | A valid IMA mineral species | ZnAl4(V5+O3)2(OH)12 · 2H2O |
| Olenite | A valid IMA mineral species | NaAl3Al6(Si6O18)(BO3)3O3(OH) |
| Ollenite | A rock subtype |
IMA Classification of Allanite-(Ce)
Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Renamed by the IMA
IMA Formula:
CaCe3+Al2Fe2+(Si2O7)(SiO4)O(OH)
First published:
1812
Approval history:
Renamed as allanite-(Ce) by IMA in 1987.
Classification of Allanite-(Ce)
9.BG.05b
9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO4 and Si2O7 groups; cations in octahedral [6] and greater coordination
9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO4 and Si2O7 groups; cations in octahedral [6] and greater coordination
Dana 7th ed.:
58.2.1.1
58.2.1a.1
58 : SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
2 : Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
58 : SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
2 : Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
16.13.5
16 : Silicates Containing Aluminum and other Metals
13 : Aluminosilicates of the rare earths
16 : Silicates Containing Aluminum and other Metals
13 : Aluminosilicates of the rare earths
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Aln-Ce | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Aln | Kretz (1983) | Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279. |
| Aln | Siivolam & Schmid (2007) | Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download |
| Aln | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
| Aln | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Allanite-(Ce)
Vitreous, Resinous
Transparency:
Translucent, Opaque
Colour:
Brown to black
Comment:
brown or green in thin section
Streak:
Brown, greyish
Hardness:
5½ - 6 on Mohs scale
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
Imperfect on {001} ; poor on {100} and {110}
Imperfect on {001} ; poor on {100} and {110}
Fracture:
Irregular/Uneven, Conchoidal
Density:
3.5 - 4.2 g/cm3 (Measured) 4.11 g/cm3 (Calculated)
Optical Data of Allanite-(Ce)
Type:
Biaxial (-)
RI values:
nα = 1.715 - 1.791 nβ = 1.718 - 1.815 nγ = 1.733 - 1.822
2V:
Measured: 40° to 80°, Calculated: 50° to 56°
Max. Birefringence:
δ = 0.018 - 0.031
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
distinct to strong
Pleochroism:
Visible
Comments:
X = pale olive-green, reddish brown; Y = dark brown, brownish yellow; Z = dark reddish brown, greenish brown.
Comments:
Metamict allanites are isotropic with N as low as 1.61.
Chemistry of Allanite-(Ce)
Mindat Formula:
(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Often slightly radioactive due to minor U and/or Th contents; therefore often metamict.
Often slightly radioactive due to minor U and/or Th contents; therefore often metamict.
Element Weights:
Crystallography of Allanite-(Ce)
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Cell Parameters:
a = 8.927 Å, b = 5.761 Å, c = 10.15 Å
β = 114.77°
β = 114.77°
Ratio:
a:b:c = 1.55 : 1 : 1.762
Unit Cell V:
473.97 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals tabular parallel to {100}, or prismatic to acicular parallel to [010] , to 90 cm; granular, massive.
Twinning:
Polysynthetic, common on {100} .
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000227 | Allanite-(Ce) | Dollase W A (1971) Refinement of the crystal structures of epidote, allanite and hancockite American Mineralogist 56 447-464 | ![]() | 1971 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Loading XRD data...
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.920 Å | (100) |
| 2.714 Å | (66) |
| 3.53 Å | (43) |
| 2.627 Å | (41) |
| 2.182 Å | (36) |
| 2.886 Å | (28) |
| 2.158 Å | (23) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 8 : Mafic igneous rocks | |
| Stage 4a: Earth’s earliest continental crust | >4.4-3.0 |
| 19 : Granitic intrusive rocks | |
| Near-surface Processes | |
| 26 : Hadean detrital minerals | |
| High-? alteration and/or metamorphism | |
| 31 : Thermally altered carbonate, phosphate, and iron formations | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites | |
| 35 : Ultra-alkali and agpaitic igneous rocks | |
| 36 : Carbonatites, kimberlites, and related igneous rocks | |
| Stage 5: Initiation of plate tectonics | <3.5-2.5 |
| 40 : Regional metamorphism (greenschist, amphibolite, granulite facies) |
Geological Setting:
A common accessory mineral in many igneous rocks, particularly those that are felsic, and metamorphosed igneous rocks. Also in pegmatites, skarns, and tactites. Not common in volcanic rocks. A detrital mineral.
Type Occurrence of Allanite-(Ce)
Place of Conservation of Type Material:
University of Copenhagen, Copenhagen, Denmark, 5, 6; The Natural History Museum, London, England, 94377.
Synonyms of Allanite-(Ce)
Other Language Names for Allanite-(Ce)
Dutch:Allaniet-(Ce)
French:Allanite-(Ce)
German:Allanit-(Ce)
Cerorthit
Cerorthit
Norwegian:Allanitt-(Ce)
Russian:Ортит-(Ce)
Simplified Chinese:铈褐帘石
Spanish:Allanita-(Ce)
Varieties of Allanite-(Ce)
| Bagrationite (of Koksharov) | Morphological variety of dipyramidal Allanite-(Ce) close to Bucklandite (of Hermann). The first description of the variety was made by N.I. Koksharov in 1847 from Akhmatovskaya Kop' (Southern Ural). |
| Chromium-bearing Allanite-(Ce) | Variety of Allanite-(Ce) with content of Cr2O3 up to 7.5 mass%. |
| Gallium-bearing Allanite-(Ce) | A unique Ga-rich variety, surrounding cores of Unnamed (Ga-analogue of Epidote). Contains up to 11 wt.% Ga2O3. |
| Nagatelite | Phosphate-rich variety of allanite-(Ce). |
Relationship of Allanite-(Ce) to other Species
Member of:
Other Members of Allanite Group:
| Akasakaite-(Ce) | (CaCe)(AlAlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Akasakaite-(La) | (CaLa)(AlAlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(La) | (CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(Sm) | (CaSm)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(Y) | (CaY)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| 'Androsite-(Ce)' | (Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH) | |
| Dissakisite-(Ce) | (CaCe)(AlAlMg)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Dissakisite-(La) | (CaLa)(AlAlMg)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriakasakaite-(Ce) | (CaCe)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriakasakaite-(La) | (CaLa)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriallanite-(La) | (CaLa)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriandrosite-(Ce) | (Mn2+Ce)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriandrosite-(La) | (Mn2+La)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Manganiakasakaite-(La) | (CaLa)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Manganiandrosite-(Ce) | (Mn2+Ce)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Manganiandrosite-(La) | (Mn2+La)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| 'Oxyallanite' | {CaCe}{Al2Fe3+}(Si2O7)(SiO4)O(O) (?) | |
| Uedaite-(Ce) | (Mn2+Ce)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| 'UM1989-32-SiO:AlCaFeHREE' | (Ca0.5◻0.5REE)(AlAlFe3+)O[Si2O7][SiO4](OH) | |
| 'UM1994-25-SiO:AlCaFeHREEV' | (CaREE)(V3+AlFe2+)O[Si2O7][SiO4](OH) | |
| 'Unnamed (Mg-analogue of Ferriallanite-(Ce))' | (CaCe)(Fe3+AlMg)O[Si2O7][SiO4](OH) | |
| 'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))' | (CaCe)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | |
| Vanadoakasakaite-(Ce) | (CaCe)(V3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vanadoakasakaite-(La) | (CaLa)(V3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vanadoallanite-(La) | (CaLa)(V3+AlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vanadoandrosite-(Ce) | (Mn2+Ce)(V3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vanadoandrosite-(La) | Mn2+La(V3+AlMn2+)(Si2O7)(SiO4)O(OH) | Mon. 2/m : P21/m |
| Vielleaureite-(Ce) | Mn2+Ce(MgAlMn2+)(Si2O7)(SiO4)F(OH) | Mon. 2/m : P21/m |
Common Associates
Associations Based on Photo Data:
| 121 photos of Allanite-(Ce) associated with Quartz | SiO2 |
| 63 photos of Allanite-(Ce) associated with Dolomite | CaMg(CO3)2 |
| 50 photos of Allanite-(Ce) associated with 'Yttrofluorite' | (Ca1-xYx)F2+x where 0.05 < x < 0.3 |
| 46 photos of Allanite-(Ce) associated with Albite | Na(AlSi3O8) |
| 45 photos of Allanite-(Ce) associated with Microcline | K(AlSi3O8) |
| 42 photos of Allanite-(Ce) associated with Titanite | CaTiO(SiO4) |
| 39 photos of Allanite-(Ce) associated with Bastnäsite-(Ce) | Ce(CO3)F |
| 27 photos of Allanite-(Ce) associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
| 24 photos of Allanite-(Ce) associated with Calcite | CaCO3 |
| 24 photos of Allanite-(Ce) associated with Zircon | Zr(SiO4) |
Related Minerals - Strunz-mindat Grouping
| 9.BG. | Alumovesuvianite | Ca19AlAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| 9.BG. | Alnaperbøeite-(Ce) | Ca(Ce2.5Na0.5)(AlAl2Al)[Si2O7][SiO4]3O(OH)2 |
| 9.BG. | Zilbermintsite-(La) | (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3 |
| 9.BG. | Heflikite | (CaCa)(AlAlSc)O[Si2O7][SiO4](OH) |
| 9.BG.O5b | Vanadoandrosite-(La) | Mn2+La(V3+AlMn2+)(Si2O7)(SiO4)O(OH) |
| 9.BG. | Magnesiovesuvianite | Ca19MgAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9 |
| 9.BG. | Zoisite-(Pb) | (CaPb)(AlAlAl)O[Si2O7][SiO4](OH) |
| 9.BG. | Shuiskite-(Cr) | Ca2Cr3+Cr3+2[Si2O6OH][SiO4](OH)2O |
| 9.BG. | Radekškodaite Group | |
| 9.BG.05 | Dissakisite-(La) | (CaLa)(AlAlMg)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Manganiandrosite-(Ce) | (Mn2+Ce)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Dissakisite-(Ce) | (CaCe)(AlAlMg)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Allanite-(Sm) | (CaSm)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05a | Hancockite | (CaPb)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Dollaseite-(Ce) | (CaCe)(MgAlMg)F[Si2O7][SiO4](OH) |
| 9.BG.05a v | 'Unnamed (Ga-analogue of Epidote)' | (CaCa)(AlAlGa3+)O[Si2O7][SiO4](OH) |
| 9.BG.05a | Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| 9.BG.05a | Epidote-(Sr) | (CaSr)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Vanadoandrosite-(Ce) | (Mn2+Ce)(V3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Vanadoallanite-(La) | (CaLa)(V3+AlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | 'Unnamed (Mg-analogue of Ferriallanite-(Ce))' | (CaCe)(Fe3+AlMg)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Ferriallanite-(La) | (CaLa)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Uedaite-(Ce) | (Mn2+Ce)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05a | Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Tweddillite | (CaSr)(Mn3+AlMn3+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Åskagenite-(Nd) | (Mn2+Nd)(AlAlFe3+)O[Si2O7][SiO4]O |
| 9.BG.05 | Piemontite-(Pb) | (CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Allanite-(La) | (CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Allanite-(Y) | (CaY)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05a | Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Akasakaite-(Ce) | (CaCe)(AlAlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Manganiandrosite-(La) | (Mn2+La)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Akasakaite-(La) | (CaLa)(AlAlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Vanadoakasakaite-(La) | (CaLa)(V3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Khristovite-(Ce) | (CaCe)(MgAlMn2+)F[Si2O7][SiO4](OH) |
| 9.BG.05b | Ferriakasakaite-(La) | (CaLa)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Ferriandrosite-(La) | (Mn2+La)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | 'Androsite-(Ce)' | (Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Vielleaureite-(Ce) | Mn2+Ce(MgAlMn2+)(Si2O7)(SiO4)F(OH) |
| 9.BG.05 | Ferriandrosite-(Ce) | (Mn2+Ce)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | 'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))' | (CaCe)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Vanadoakasakaite-(Ce) | (CaCe)(V3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Piemontite-(Sr) | (CaSr)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| 9.BG.05 | Niigataite | (CaSr)(AlAlAl)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Ferriakasakaite-(Ce) | (CaCe)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | 'UM1989-32-SiO:AlCaFeHREE' | (Ca0.5◻0.5REE)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| 9.BG.05a | Mukhinite | (CaCa)(AlAlV3+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Manganiakasakaite-(La) | (CaLa)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) |
| 9.BG.10 | Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| 9.BG.15 | Macfallite | Ca2Mn3+3(SiO4)(Si2O7)(OH)3 |
| 9.BG.15 | Sursassite | Mn2+2Al3(SiO4)(Si2O7)(OH)3 |
| 9.BG.20 | Pumpellyite-(Al) | Ca2AlAl2[Si2O6OH][SiO4](OH)2O |
| 9.BG.20 | Shuiskite-(Mg) | Ca2MgCr3+2[Si2O6OH][SiO4](OH)2(OH) |
| 9.BG.20 | Julgoldite-(Fe2+) | Ca2Fe2+Fe3+2[Si2O6OH][SiO4](OH)2(OH) |
| 9.BG.20 | Okhotskite | Ca2Mn2+Mn3+2[Si2O6OH][SiO4](OH)2(OH) |
| 9.BG.20 | Julgoldite-(Mg) | Ca2MgFe3+2[Si2O6OH][SiO4](OH)2(OH) |
| 9.BG.20 | Poppiite | Ca2V3+V3+2[Si2O6OH][SiO4](OH)2O |
| 9.BG.20 | Julgoldite-(Fe3+) | Ca2Fe3+Fe3+2[Si2O6OH][SiO4](OH)2O |
| 9.BG.20 | Pumpellyite-(Fe2+) | Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH) |
| 9.BG.20 | Pumpellyite-(Fe3+) | Ca2Fe3+Al2[Si2O6OH][SiO4](OH)2O |
| 9.BG.20 | Pumpellyite-(Mg) | Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH) |
| 9.BG.20 | Pumpellyite-(Mn2+) | Ca2Mn2+Al2[Si2O6OH][SiO4](OH)2(OH) |
| 9.BG.25 | Ganomalite | Pb9Ca5Mn(Si2O7)4(SiO4)O |
| 9.BG.25 | Wayneburnhamite | Pb9Ca6(Si2O7)3(SiO4)3 |
| 9.BG.30 | Rustumite | Ca10(Si2O7)2(SiO4)(OH)2Cl2 |
| 9.BG.35 | Modraite | Ca19Fe2+Al4(Al6Fe2+2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9 |
| 9.BG.35 | Fluorvesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(F,OH)9 |
| 9.BG.35 | Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| 9.BG.35 | Milanriederite | (Ca18[REE])Fe3+Al4(Mg4Al4)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9 |
| 9.BG.35 | Manaevite-(Ce) | (Ca13Ce4[H2O]2)Mg(Al3Mg)(Mg3Ti3Fe3+2)(◻4)◻[Si2O7]4[(SiO4)8(H4O4)2]O(OH)9 |
| 9.BG.35 | Hongheite | Ca19Fe2+Al4(Fe3+,Mg)8(◻4)B[Si2O7]4[(SiO4)10]O(OH,O)9 |
| 9.BG.35 | Wiluite | Ca19MgAl4(Al,Mg)8(B,◻)4◻[Si2O7]4[(SiO4)10]O(O,OH)9 |
| 9.BG.35 | Cyprine | Ca19Cu2+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9 |
| 9.BG.35 | Manganvesuvianite | Ca19Mn3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| 9.BG.40 | Vyuntspakhkite-(Y) | (Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7 |
| 9.BG.45 | Dellaite | Ca6Si3O11(OH)2 |
| 9.BG.50 | Ferriperbøeite-(Ce) | CaCe3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | Perbøeite-(La) | CaLa3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | Perbøeite-(Ce) | CaCe3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | Gatelite-(Ce) | CaCe3(AlAl2Mg)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | Ferriperbøeite-(La) | CaLa3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.55 | Västmanlandite-(Ce) | CaCe3(MgAl2Mg)[Si2O7][SiO4]3F(OH)2 |
| 9.BG.60 | Radekškodaite-(La) | (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3 |
| 9.BG.60 | Radekškodaite-(Ce) | (CaCe5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3 |
Other Information
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 Allanite-(Ce)
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References for Allanite-(Ce)
Reference List:
Marble, John Putnam (1940) Allanite from Barringer Hill, Llano County, Texas. American Mineralogist, 25 (3) 168-173
Hutton, C. Osborne (1951) Allanite from Yosemite National Park, Tuolumne, Co., California. American Mineralogist, 36 (3-4) 233-248
Hutton, C. O. (1951) Allanite from Wilmot Pass, Fiordland, New Zealand. American Journal of Science, 249 (3) 208-214 doi:10.2475/ajs.249.3.208
Frondel, Judith W. (1964) Variation of some rare earths in allanite. American Mineralogist, 49 (9-10) 1159-1177
Dollase, W. A. (1971) Refinement of the crystal structures of epidote, allanite, and hancockite. American Mineralogist, 56 (3-4) 447-464
Rao, A. T., Appa Rao, G., Prabhakara Rao, P. (1979) Fluorian allanite from calc-granulite and pegmatite contacts at Garividi, Andhra Pradesh, India. Mineralogical Magazine, 43 (326) 312 doi:10.1180/minmag.1979.043.326.17 (as "allanite")
Fleischer, M. (1985) A summary of the variations in relative abundance of the lanthanides and yttrium in allanites and epidotes. Bulletin of the Geological Society of Finland, 57 (1). 151-155 doi:10.17741/bgsf/57.1-2.012
Nickel, Ernest H., Mandarino, Joseph A. (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature. American Mineralogist, 72 (9-10) 1031-1042
Pan, Yuanming, Fleet, Michael E. (1991) Vanadian allanite-(La) and Vanadian allanite-(Ce) from the Hemlo gold deposit, Ontario, Canada. Mineralogical Magazine, 55 (381) 497-507 doi:10.1180/minmag.1991.055.381.01
Wood, S. A., Ricketts, A. (2000) Allanite-(Ce) from the Eocene Casto granite, Idaho: response to hydrothermal alteration. The Canadian Mineralogist, 38 (1). 81-100 doi:10.2113/gscanmin.38.1.81
Ercit, T. S. (2002) The mess that is "allanite". The Canadian Mineralogist, 40 (5). 1411-1419 doi:10.2113/gscanmin.40.5.1411
Wing, Boswell A., Ferry, John M., Harrison, T. Mark (2003) Prograde destruction and formation of monazite and allanite during contact and regional metamorphism of pelites: petrology and geochronology. Contributions to Mineralogy and Petrology, 145 (2) 228-250 doi:10.1007/s00410-003-0446-1
Hoshino, M., Kimata, M., Shimizu, M., Nishida, N., Fujiwara, T. (2006) Allanite-(Ce) in granitic rocks from Japan: genetic implications of patterns of REE and Mn enrichment. The Canadian Mineralogist, 44 (1). 45-62 doi:10.2113/gscanmin.44.1.45
Armbruster, Thomas, Bonazzi, Paola, Akasaka, Masahide, Bermanec, Vladimir, Chopin, Christian, Gieré, Reto, Heuss-Assbichler, Soraya, Liebscher, Axel, Menchetti, Silvio, Pan, Yuanming, Pasero, Marco (2006) Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy, 18 (5) 551-567 doi:10.1127/0935-1221/2006/0018-0551
Beirau, T., Paulmann, C., Bismayer, U. (2011) Recrystallization of metamict allanite. Mineralogical Magazine, 75 (4) 2393-2399 doi:10.1180/minmag.2011.075.4.2393
Vyshnevskyi, O. (2015) Cr-rich Allanite-(Ce): the First Finding in Kimberlites. Mineralogical Journal, 37 (3). 45-50 doi:10.15407/mineraljournal.37.03.045
Alekseev, V. I., Marin, Yu. B., Gembitskaya, I. M. (2016) Allanite-(Y) and allanite-(Ce) paragenesis in tourmalinite of the Severnyi pluton, Chukchi Peninsula, and the relationship between yttrium and lanthanides in allanite. Geology of Ore Deposits, 58 (8) 674-680 doi:10.1134/s107570151608002x
Guastoni, Alessandro; Nestola, Fabrizio; Schiazza, Mariangela (2017) Post-magmatic solid solutions of CaCeAl2(Fe3+2/3□1/3)[Si2O7][SiO4]O(OH), allanite-(Ce) and REE-bearing epidote in miarolitic pegmatites of Permian Baveno granite (Verbania, central-southern alps, Italy). Mineralogy and Petrology, 111 (3). 315-323 doi:10.1007/s00710-016-0475-x
Reissner, Claudia E., Bismayer, Ulrich, Kern, Daniel, Reissner, Michael, Park, Sulgiye, Zhang, Jiaming, Ewing, Rodney C., Shelyug, Anna, Navrotsky, Alexandra, Paulmann, Carsten, Škoda, Radek, Groat, Lee A., Pöllmann, Herbert, Beirau, Tobias (2019) Mechanical and structural properties of radiation-damaged allanite-(Ce) and the effects of thermal annealing. Physics and Chemistry of Minerals, 46 (10) 921-933 doi:10.1007/s00269-019-01051-z
Reissner, Claudia Eva, Reissner, Michael, Kern, Daniel, Pöllmann, Herbert, Beirau, Tobias (2020) Iron sites in radiation-damaged allanite-(Ce): the effects of thermally induced oxidation and structural reorganization. Hyperfine Interactions, 241 (1). doi:10.1007/s10751-019-1686-4
Shen, Can, Shu, Zhengxiang, Gu, Xiangping, Dick, Jeffrey, Feng, Yuzhou, Zheng, Hui, Lu, Anhuai (2022) Site splitting at M3 in allanite-(Ce). Mineralogical Magazine, 86 (1). 134-140 doi:10.1180/mgm.2021.106
Stumpf, S.; Skrzypek, E.; Stüwe, K. (2024) Dating prograde metamorphism: U–Pb geochronology of allanite and REE-rich epidote in the Eastern Alps. Contributions to Mineralogy and Petrology, 179 (6). p.63. doi:10.1007/s00410-024-02130-3
Brugger, Joël, Cuchet, Stéphane, van der Burgt, Ate, Crumbach, Mischa, Etschmann, Barbara, Xing, Yanlu, Ram, Rahul, Michaut, Paul, Nebel, Oliver, Raveggi, Massimo, et al. (2025) Titanite and allanite as a record of multistage co-mobility of Ti-REE-Nb-As during metamorphism in the Central Alps. American Mineralogist, 110 (4). 603-621 doi:10.2138/am-2024-9378
Localities for Allanite-(Ce)
Showing 989 localities.
Locality List
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Solås Pegmatite, Iveland, Agder, Norway