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Allanite-(Nd)
A valid IMA mineral species
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About Allanite-(Nd)
Formula:
(CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH)
Colour:
Dark brown to black
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
3.98
Crystal System:
Monoclinic
Member of:
Name:
Named in 2012 by Radek Ć koda, Jan CempĂrek, Jan Filip, Milan NovĂĄk, FrantiĆĄek VeselovskĂœ and Radim ÄtvrtlĂk for being neodymium-dominant and its relationship to the allanite-series minerals. The group name is in honor of Thomas Allan (1777, Edinburgh, Scotland - 1833, Morpeth, Northumberland, England), Scottish banker and mineralogist.
This page provides mineralogical data about Allanite-(Nd).
Unique Identifiers
Mindat ID:
36831
Long-form identifier:
mindat:1:1:36831:7
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-(Ce) | A valid IMA mineral species - grandfathered | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Allanite-(La) | A valid IMA mineral species | (CaLa)(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-(Nd)
Classification of Allanite-(Nd)
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
58.2.6.4
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)
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Aln-Nd | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC 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, 277â279. |
| 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, 185â187 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 |
Pronunciation of Allanite-(Nd)
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Allanite-(Nd)
Vitreous
Transparency:
Translucent, Opaque
Colour:
Dark brown to black
Streak:
Grayish-brown.
Hardness:
6 on Mohs scale
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
Imperfect along {001}.
Imperfect along {001}.
Fracture:
Conchoidal
Density:
3.98 g/cm3 (Measured) 4.04 g/cm3 (Calculated)
Comment:
Calculated using the empirical formula.
Optical Data of Allanite-(Nd)
Type:
Biaxial (-)
RI values:
nα = 1.723(5) nβ = 1.754(7) nγ = 1.772(5)
2V:
Measured: 82° (3)
Max. Birefringence:
δ = 0.049
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 ”m 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 ”m 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:
Strong, r > v.
Pleochroism:
Weak
Comments:
Moderately pleochroic in larger fragments. α = pale grayish-brown, γ = grayish-brown. Small fragment are colorless.
Chemistry of Allanite-(Nd)
Mindat Formula:
(CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH)
Element Weights:
Common Impurities:
Al,Ca,Ce,Fe,La,Mg,Mn,Pr,Sm,Ti
Crystallography of Allanite-(Nd)
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 8.8897(5) Å, b = 5.7308(2) Å, c = 10.1010(6) Å
β = 115.166(7)°
β = 115.166(7)°
Ratio:
a:b:c = 1.551 : 1 : 1.763
Unit Cell V:
465.75 Ă
Âł (Calculated from Unit Cell)
Twinning:
None observed.
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) |
|---|---|---|---|---|---|---|---|
| 0018878 | Allanite-(Nd) | Skoda R, Cempirek J, Filip J, Novak M, Veselovsky F, Ctvrtlik R (2012) Allanite-(Nd), CaNdAl2Fe2+(SiO4)(Si2O7)O(OH), a new mineral from Askagen, Sweden American Mineralogist 97 983-988 | 2012 | Askagen pegmatite, Varmland, Sweden | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.508 Ă | (46) |
| 2.893 Ă | (100) |
| 2.865 Ă | (45) |
| 2.698 Ă | (60) |
| 2.607 Ă | (60) |
| 2.164 Ă | (35) |
| 2.117 Ă | (38) |
| 1.659 Ă | (43) |
Comments:
Ă
skagen Quarry, VĂ€rmland County, Sweden. The data are from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earthâs earliest Hadean crust | >4.50 |
| 8 : Mafic igneous rocks |
Geological Setting:
Pegmatite with unusually extreme LREE enrichment and HREE depletion.
Type Occurrence of Allanite-(Nd)
General Appearance of Type Material:
Fine-grained aggregates within altered thalénite-(Y) and thin crack fillings. The size of individual grains is less than 0.5 mm.
Place of Conservation of Type Material:
Department of Mineralogy and Petrology, Czech National Museum, Prague (Czech Republic), catalogue no. P1P 1/2010.
Geological Setting of Type Material:
NYF-family granitic pegmatite.
Associated Minerals at Type Locality:
Synonyms of Allanite-(Nd)
Other Language Names for Allanite-(Nd)
Dutch:Allaniet-(Nd)
French:Allanite-(Nd)
German:Allanit-(Nd)
Norwegian:Allanitt-(Nd)
Simplified Chinese:éè€ćžçł
Relationship of Allanite-(Nd) 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-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(La) | (CaLa)(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' | (Ca0.5â»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:
| 11 photos of Allanite-(Nd) associated with Iimoriite-(Y) | Y2[SiO4][CO3] |
| 5 photos of Allanite-(Nd) associated with Tengerite-(Y) | Y2(CO3)3 · 2-3H2O |
| 5 photos of Allanite-(Nd) associated with Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 4 photos of Allanite-(Nd) associated with Ă skagenite-(Nd) | (Mn2+Nd)(AlAlFe3+)O[Si2O7][SiO4]O |
| 2 photos of Allanite-(Nd) associated with Thalénite-(Y) | Y3Si3O10F |
| 2 photos of Allanite-(Nd) associated with Gadolinite-(Y) | Y2Fe2+Be2Si2O10 |
| 1 photo of Allanite-(Nd) associated with Siderite | FeCO3 |
| 1 photo of Allanite-(Nd) associated with Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| 1 photo of Allanite-(Nd) associated with Thorite | Th(SiO4) |
| 1 photo of Allanite-(Nd) associated with Keiviite-(Y) | Y2Si2O7 |
Related Minerals - Strunz-mindat Grouping
| 9.BG. | Alumovesuvianite | Ca19AlAl4(Al6Mg2)(â»4)â»[Si2O7]4[(SiO4)10]O(OH)9 |
| 9.BG. | AlnaperbĂžeite-(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)(â»4)â»[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. | RadekĆĄkodaite 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 | Ă skagenite-(Nd) | (Mn2+Nd)(AlAlFe3+)O[Si2O7][SiO4]O |
| 9.BG.05 | Piemontite-(Pb) | (CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| 9.BG.05b | Allanite-(Ce) | (CaCe)(AlAlFe2+)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 | 'UM1989-32-SiO:AlCaFeHREE' | (Ca0.5â»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)(â»4)â»[Si2O7]4[(SiO4)10](OH)(OH)9 |
| 9.BG.35 | Fluorvesuvianite | Ca19Fe3+Al4(Al6Mg2)(â»4)â»[Si2O7]4[(SiO4)10]O(F,OH)9 |
| 9.BG.35 | Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(â»4)â»[Si2O7]4[(SiO4)10]O(OH)9 |
| 9.BG.35 | Milanriederite | (Ca18[REE])Fe3+Al4(Mg4Al4)(â»4)â»[Si2O7]4[(SiO4)10](OH)(OH)9 |
| 9.BG.35 | Manaevite-(Ce) | (Ca13Ce4[H2O]2)Mg(Al3Mg)(Mg3Ti3Fe3+2)(â»4)â»[Si2O7]4[(SiO4)8(H4O4)2]O(OH)9 |
| 9.BG.35 | Hongheite | Ca19Fe2+Al4(Fe3+,Mg)8(â»4)B[Si2O7]4[(SiO4)10]O(OH,O)9 |
| 9.BG.35 | Wiluite | Ca19MgAl4(Al,Mg)8(B,â»)4â»[Si2O7]4[(SiO4)10]O(O,OH)9 |
| 9.BG.35 | Cyprine | Ca19Cu2+Al4(Al6Mg2)(â»4)â»[Si2O7]4[(SiO4)10](OH)(OH)9 |
| 9.BG.35 | Manganvesuvianite | Ca19Mn3+Al4(Al6Mg2)(â»4)â»[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 | FerriperbĂžeite-(Ce) | CaCe3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | PerbĂžeite-(La) | CaLa3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | PerbĂžeite-(Ce) | CaCe3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | Gatelite-(Ce) | CaCe3(AlAl2Mg)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.50 | FerriperbĂžeite-(La) | CaLa3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2 |
| 9.BG.55 | VĂ€stmanlandite-(Ce) | CaCe3(MgAl2Mg)[Si2O7][SiO4]3F(OH)2 |
| 9.BG.60 | RadekĆĄkodaite-(La) | (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3 |
| 9.BG.60 | RadekĆĄkodaite-(Ce) | (CaCe5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3 |
Fluorescence of Allanite-(Nd)
Not fluorescent.
Other Information
Notes:
Locally metamict.
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-(Nd)
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https://www.mindat.org/min-36831.html
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References for Allanite-(Nd)
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 8. Mineralogical Magazine, 75 (2) 289-294 doi:10.1180/minmag.2011.075.2.289
Skoda, R., Cempirek, J., Filip, J., Novak, M., Veselovsky, F., Ctvrtlik, R. (2012) Allanite-(Nd), CaNdAl2Fe2+(SiO4)(Si2O7)O(OH), a new mineral from Askagen, Sweden. American Mineralogist, 97 (5) 983-988 doi:10.2138/am.2012.3936
Hanson, S. L., Falster, A. U., Simmons, W. B., Brown, T. A. (2012) Allanite-(Nd) from the Kingman Feldspar Mine, Mojave Pegmatite District, Northwestern Arizona, USA. The Canadian Mineralogist, 50 (4) 815-824 doi:10.3749/canmin.50.4.815
Localities for Allanite-(Nd)
Showing 10 localities.
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
Austria | |
| Kolitsch (2026) |
Japan | |
| çć·éé et al. (2001) |
Mongolia | |
| Zenina (2017) |
| Pavel M. Kartashov analytical data (1995) |
| Kovalenko et al. (2004) | |
Poland | |
| Zelek-Pogudz et al. (2026) |
Russia | |
| Kasatkin et al. (2019) |
Spain | |
| GonzĂĄlez del TĂĄnago (1997) +1 other reference |
Sweden (TL) | |
| Jansson (2001) +3 other references |
USA | |
| Brown (2010) +2 other references |
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The
Ă skagen Quarry, Persberg ore district, Filipstad, VĂ€rmland County, Sweden