Tundrite-(Nd) (original) (raw)

A valid IMA mineral species

Formula:

Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2

Colour:

Brownish to greenish yellow

Name:

Named for its relationship to tundrite-(Ce), with Nd being the dominant rare earth element.

Note that the mineral was accepted automatically, without detailed investigation and description of type material. Only a single Nd-dominant analysis was published. In other words, tundrite-(Nd) is a very doubtful mineral, which nobody saw and nobody have. Consequently nobody was able to repeat results of its chemical analysis.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:4049:1

a419dab8-9975-4af9-b236-94157d2d9927

IMA Classification of Tundrite-(Nd)Hide

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IMA Formula:

Na2Nd2TiO2(SiO4)(CO3)2

Classification of Tundrite-(Nd)Hide

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9.AH.10

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.

17.1.11.2

17 : COMPOUND CARBONATES
1 : Miscellaneous

17.4.16

17 : Silicates Containing other Anions
4 : Silicates with carbonates

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.

Symbol Source Reference
Tnd-Nd 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 Tundrite-(Nd)Hide

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Colour:

Brownish to greenish yellow

Density:

4.02 g/cm3 (Measured)

Optical Data of Tundrite-(Nd)Hide

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δ = 1.731

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

Chemistry of Tundrite-(Nd)Hide

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Mindat Formula:

Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2

X-Ray Powder DiffractionHide

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Comments:

No published X-ray powder diffraction data.

Geological EnvironmentHide

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Type Occurrence of Tundrite-(Nd)Hide

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General Appearance of Type Material:

As spherulitic masses up to 5 mm.

Place of Conservation of Type Material:

No designated type material.

Associated Minerals at Type Locality:

Synonyms of Tundrite-(Nd)Hide

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Other Language Names for Tundrite-(Nd)Hide

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Relationship of Tundrite-(Nd) to other SpeciesHide

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Other Members of this group:

Structurally related to group(s):

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9.AH. Fluorbritholite-(Nd) Ca2Nd3(SiO4)3F Hex. 6/m : _P_63/m
9.AH.05 Iimoriite-(Y) Y2[SiO4][CO3] Tric. 1 : _P_1
9.AH.10 Tundrite-(Ce) Na2Ce2Ti(SiO4)(CO3)2O2 Tric. 1 : _P_1
9.AH.15 Spurrite Ca5(SiO4)2(CO3) Mon. 2/m : _P_21/b
9.AH.15 Galuskinite Ca7(SiO4)3(CO3) Mon. 2/m : _P_21/b
9.AH.20 Ternesite Ca5(SiO4)2(SO4) Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
9.AH.20 Silicocarnotite Ca5[(SiO4)(PO4)](PO4) Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
9.AH.25 Britholite-(Ce) (Ce,Ca)5(SiO4)3OH Hex. 6/m : _P_63/m
9.AH.25 Britholite-(Y) (Y,Ca)5(SiO4)3OH Hex. 6/m : _P_63/m
9.AH.25 Chlorellestadite Ca5(SiO4)1.5(SO4)1.5Cl Hex. 6/m : _P_63/m
9.AH.25 Fluorbritholite-(Ce) (Ce,Ca)5(SiO4)3F Hex. 6/m : _P_63/m
9.AH.25 Fluorellestadite Ca5(SiO4)1.5(SO4)1.5F Hex. 6/m : _P_63/m
9.AH.25 Hydroxylellestadite Ca5(SiO4)1.5(SO4)1.5(OH) Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m c m
9.AH.25 Mattheddleite Pb5(SiO4)1.5(SO4)1.5(Cl,OH) Hex. 6/m : _P_63/m
9.AH.25 Tritomite-(Ce) Ce5(SiO4,BO4)3(OH,O)
9.AH.25 Tritomite-(Y) Y5(SiO4,BO4)3(O,OH,F)
9.AH.25 Fluorcalciobritholite (Ca,REE)5(SiO4,PO4)3F Hex. 6/m : _P_63/m
9.AH.25 Fluorbritholite-(Y) (Y,Ca)5(SiO4)3F Hex. 6/m : _P_63/m
9.AH.25 Britholite-(La) Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F)
9.AH.25 Calciobritholite (Ca,Y)5(SiO4,PO4)3(OH)
9.AH.35 Nabimusaite KCa12(SiO4)4(SO4)2O2F Trig. 3_m_ _(_32/m ) : R_3_m
9.AH.35 Dargaite BaCa12(SiO4)4(SO4)2O3 Trig. 3_m_ : R_3_m
9.AH.40 Zadovite BaCa6[(SiO4)(PO4)](PO4)2F Trig. 3_m_ : R_3_m
9.AH.40 Gazeevite BaCa6(SiO4)2(SO4)2O Trig. 3_m_ _(_32/m ) : R_3_m
9.AH.40 Stracherite BaCa6(SiO4)2[(PO4)(CO3)]2F Trig. 3_m_ _(_32/m ) : R_3_m
9.AH.45 Flamite Ca8-x(Na,K)x(SiO4)4-x(PO4)x Orth. m _m_2
9.AH.50 Byzantievite Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 Trig. 3 : _R_3
9.AH.55 Greenwoodite (Ba,V3+O)2V3+9(Fe3+,Fe2+)2Si2O22 Trig. 3_m_ _(_32/m ) : _P_3_m_1
9.AH.60 Kihlmanite-(Ce) Ce2TiO2(SiO4)(HCO3)2(H2O) Tric. 1 : _P_1
9.AH.65 Tsangpoite Ca5(PO4)2(SiO4) Hex.
9.AH.70 Enalite (Th,REE,Al) [(PO4),(SiO4),(OH)] Tet.

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 Tundrite-(Nd)Hide

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Localities for Tundrite-(Nd)Hide

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ⓘ - 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.