Gadolinite-(Nd) (original) (raw)

A valid IMA mineral species

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About Gadolinite-(Nd)Hide

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Formula:

Nd2Fe2+Be2O2(SiO4)2

Lustre:

Adamantine, Sub-Adamantine, Vitreous

Specific Gravity:

4.86 (Calculated)

Crystal System:

Monoclinic

Name:

Named for its relationship to gadolinite-(Y), but with neodymium as the dominant rare earth element. Gadolinite honors Johan Gadolin (5 June 1760, Turku, Finland - 15 August 1852, Mynämäki, Finland), chemist, physicist, and mineralogist.

The second mineral combining Nd and Be after hingganite-(Nd).

Approved in 2016; Nd-dominant members had been reported previously (Kolitsch et al., 2008; Pršek et al., 2010).

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:47913:6

8c8b0841-4aaf-490e-b0a8-ef207806f7e9

IMA Classification of Gadolinite-(Nd)Hide

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Type description reference:

Škoda, Radek, Plášil, Jakub, Čopjaková, Renata, Novák, Milan, Jonsson, Erik, Galiová, Michaela Vašinová, Holtstam, Dan (2018) Gadolinite-(Nd), a new member of the gadolinite supergroup from Fe-_REE_deposits of Bastnäs-type, Sweden. Mineralogical Magazine, 82 (S1) 133-145 doi:10.1180/minmag.2017.081.047

Classification of Gadolinite-(Nd)Hide

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9.AJ.20

9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4

Mineral SymbolsHide

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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.

Symbol Source Reference
Gad-Nd IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Gad 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

Physical Properties of Gadolinite-(Nd)Hide

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Adamantine, Sub-Adamantine, Vitreous

Density:

4.86 g/cm3 (Calculated)

Optical Data of Gadolinite-(Nd)Hide

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RI values:

_n_α = 1.780(1) _n_β = 1.800(1) _n_γ = 1.810(1)

δ = 0.030

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Chemistry of Gadolinite-(Nd)Hide

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Mindat Formula:

Nd2Fe2+Be2O2(SiO4)2

Crystallography of Gadolinite-(Nd)Hide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 4.8216(3) Å, b = 7.6985(4) Å, c = 10.1362(6) Å
β = 90.234(4)°

Ratio:

a:b:c = 0.626 : 1 : 1.317

Morphology:

Anhedral grains up to 150 μm in size, commonly occurring as aggregates.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
4.83 Å (72)
3.603 Å (37)
3.191 Å (52)
3.179 Å (32)
3.097 Å (35)
3.014 Å (35)
2.888 Å (100)
2.607 Å (49)

Geological EnvironmentHide

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Type Occurrence of Gadolinite-(Nd)Hide

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General Appearance of Type Material:

Anhedral grains up to 150 μm in size, commonly occurring as aggregates

Place of Conservation of Type Material:

Mineralogical collections of the Moravian Museum, Brno, Zelný trh 6, CZ-659 37 Brno, Czech Republic (catalogue number B 11298)

Associated Minerals at Type Locality:

Reference:

Škoda, R., Plášil, J., Čopjaková, R., Novák, M., Jonsson, E., Vašinová Galiová, M., Holtstam, D. (2018) Gadolinite-(Nd), a new member of the gadolinite supergroup from Fe-REE deposits of Bastnäs-type, Sweden. Mineralogical Magazine: 82: S133–S145.

Synonyms of Gadolinite-(Nd)Hide

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Other Language Names for Gadolinite-(Nd)Hide

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Relationship of Gadolinite-(Nd) to other SpeciesHide

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Other Members of this group:

Calcybeborosilite-(Y) (Y,Ca)2(◻,Fe2+)(B,Be)2[SiO4]2(OH,O)2 Mon.
Gadolinite-(Ce) (Ce,La,Nd,Y)2Fe2+Be2Si2O10 Mon. 2/m
Gadolinite-(Y) Y2Fe2+Be2Si2O10 Mon. 2/m : _P_21/b
Hingganite-(Ce) (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 Mon. 2/m : _P_21/b
Hingganite-(Nd) Nd2◻Be2Si2O8(OH)2 Mon. 2/m : _P_21/b
Hingganite-(Y) (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 Mon. 2/m : _P_21/b
Hingganite-(Yb) (Yb,Y,REE)2◻Be2[SiO4]2(OH)2 Mon. 2/m : _P_21/b
Minasgeraisite-(Y) (Ca2Y2)◻2(Be2B2)[SiO4]4(OH)4 Tric. 1 : _P_1
Unnamed (OH-analogue of Gadolinite-(Y)) (Y,Ca)2(Fe,◻)Be2Si2O8(OH,O)2 Mon. 2/m

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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9.AJ. Hingganite-(Nd) Nd2◻Be2Si2O8(OH)2 Mon. 2/m : _P_21/b
9.AJ. Arrheniusite-(Ce) CaMg[(Ce7Y3)Ca5](SiO4)4(Si2B3AsO18)(BO3)F11 Trig. 3_m_ : R_3_m
9.AJ.05 Grandidierite (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 Orth. m m m _(_2/_m_2/_m_2/m )
9.AJ.05 Ominelite (Fe2+,Mg)(Al,Fe3+)3(SiO4)(BO3)O2 Orth. m m m _(_2/_m_2/_m_2/m )
9.AJ.10 Dumortierite Al(Al2O)(Al2O)2(SiO4)3(BO3) Orth. m m m _(_2/_m_2/_m_2/m )
9.AJ.10 Holtite (Ta0.6◻0.4)Al6BSi3O18(O,OH)2.25 Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
9.AJ.10 Magnesiodumortierite Mg(Al2OH)(Al2O)2(SiO4)3(BO3) Orth. m m m _(_2/_m_2/_m_2/m )
9.AJ.10 Nioboholtite (Nb0.6◻0.4)Al6BSi3O18 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c m
9.AJ.10 Titanoholtite (Ti0.75◻0.25)Al6BSi3O18 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c m
9.AJ.15 Garrelsite Ba3NaSi2B7O16(OH)4 Mon. 2/m : _B_2/b
9.AJ.20 Muromontite near Be2FeY2Si3O12
9.AJ.20 Datolite CaB(SiO4)(OH) Mon. 2/m : _P_21/b
9.AJ.20 Gadolinite-(Ce) (Ce,La,Nd,Y)2Fe2+Be2Si2O10 Mon. 2/m
9.AJ.20 Gadolinite-(Y) Y2Fe2+Be2Si2O10 Mon. 2/m : _P_21/b
9.AJ.20 Hingganite-(Ce) (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 Mon. 2/m : _P_21/b
9.AJ.20 Hingganite-(Y) (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 Mon. 2/m : _P_21/b
9.AJ.20 Hingganite-(Yb) (Yb,Y,REE)2◻Be2[SiO4]2(OH)2 Mon. 2/m : _P_21/b
9.AJ.20 Homilite Ca2(Fe2+,Mg)B2Si2O10 Mon. 2/m : _P_21/b
9.AJ.20 Melanocerite-(Ce) (Ce,Ca)5(SiO4,BO4)3(OH,O) Hex.
9.AJ.20 Minasgeraisite-(Y) (Ca2Y2)◻2(Be2B2)[SiO4]4(OH)4 Tric. 1 : _P_1
9.AJ.20 Calcybeborosilite-(Y) (Y,Ca)2(◻,Fe2+)(B,Be)2[SiO4]2(OH,O)2 Mon.
9.AJ.20 Unnamed (OH-analogue of Gadolinite-(Y)) (Y,Ca)2(Fe,◻)Be2Si2O8(OH,O)2 Mon. 2/m
9.AJ.25 Stillwellite-(Ce) (Ce,La,Ca)BSiO5 Trig. 3 : _P_31
9.AJ.30 Cappelenite-(Y) Ba(Y,Ce)6Si3B6O24F2 Trig. 3 : _P_3
9.AJ.35 Okanoganite-(Y) (Na,Ca)3(Y,Ce)12Si6B2O27F14 Trig. 3_m_ : R_3_m
9.AJ.35 Vicanite-(Ce) (Ca,Ce,La,Th)15As5+(As3+0.5,Na0.5)Fe3+Si6B4O40F7 Trig. 3_m_ : R_3_m
9.AJ.35 Hundholmenite-(Y) (Y,REE,Ca,Na)15(Al,Fe3+)(CaxAs3+1-x)(Si,As5+)Si6B3(O,F)48 Trig. 3_m_ : R_3_m
9.AJ.35 Proshchenkoite-(Y) Ca(Y,REE,Ca,Na,Mn)15Fe2+(P,Si)Si6B3O34F14 Trig. 3_m_ : R_3_m
9.AJ.35 Laptevite-(Ce) Ca6(Fe2+,Mn2+)Y3REE7(SiO4)3(PO4)(B3Si3O18)(BO3)F11 Trig. 3_m_ : R_3_m
9.AJ.40 Jadarite LiNaSiB3O7(OH) Mon. 2/m

Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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References for Gadolinite-(Nd)Hide

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Reference List:

Kolitsch, U., Brandstätter, F. & Blass, G. (2008): Baryt, Bismuthinit, Brannerit, Cobaltit, Coelestin, Glieder der Gadolinitgruppe, Galenit, Krupkait, "inkommensurabel modulierter Krupkait", Prehnit, ein Smektitmineral, Stellerit und Strontianit aus den Deponien des Kraftwerkbaues im hinteren Gasteinertal (Sportgastein), Salzburg. Pp. 250-252 in: Niedermayr, G. et al. (2008): Neue Mineralfunde aus Österreich LVII. Carinthia II, 198./118., 223-274 (in German).

Pršek, J., Ondrejka, M., Bačík, P., Budzyń, B., Uher, P. (2010) Metamorphic-hydrothermal REE minerals in the Bacúch Magnetite Deposit, Western Carpathians, Slovakia: (Sr,S)-rich monazite-(Ce) and Nd-dominant hingganite. The Canadian Mineralogist, 48 (1) 81-94 doi:10.3749/canmin.48.1.81

Bačík, Peter, Miyawaki, Ritsuro, Atencio, Daniel, Cámara, Fernando, Fridrichová, Jana (2017) Nomenclature of the gadolinite supergroup. European Journal of Mineralogy, 29 (6) 1067-1082 doi:10.1127/ejm/2017/0029-2659

Škoda, Radek, Plášil, Jakub, Čopjaková, Renata, Novák, Milan, Jonsson, Erik, Galiová, Michaela Vašinová, Holtstam, Dan (2018) Gadolinite-(Nd), a new member of the gadolinite supergroup from Fe-_REE_deposits of Bastnäs-type, Sweden. Mineralogical Magazine, 82 (S1) 133-145 doi:10.1180/minmag.2017.081.047

Localities for Gadolinite-(Nd)Hide

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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.

Locality ListHide

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- 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.

Sweden
Västmanland County Norberg ⓘ Johanna mine Škoda et al. (2018)
ⓘ Malmkärra Mine (TL) Hålenius et al. (2016) +1 other reference
Skinnskatteberg Riddarhyttan Bastnäs Mines ⓘ Nya Bastnäs deposit Škoda et al. (2018)