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Lanthanite-(Nd)
A valid IMA mineral species
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About Lanthanite-(Nd)
Formula:
Nd2(CO3)3 · 8H2O
Colour:
pale purple, light pink
Lustre:
Vitreous, Pearly
Hardness:
2½ - 3
Specific Gravity:
2.78 - 2.84
Crystal System:
Orthorhombic
Member of:
Name:
In allusion to the composition, containing lanthanide series elements with Neodymium (Nd) dominant.
Type Locality:
Isostructural with:
This page provides mineralogical data about Lanthanite-(Nd).
Unique Identifiers
Mindat ID:
2327
Long-form identifier:
mindat:1:1:2327:2
Similar Names
| Lanthanite | A group of related mineral species | REE23+(CO3)3 · 8H2O |
| Lanthanite-(Ce) | A valid IMA mineral species | Ce2(CO3)3 · 8H2O |
| Lanthanite-(La) | A valid IMA mineral species - grandfathered | La2(CO3)3 · 8H2O |
| Lianthinit | A synonym of Ianthinite |
IMA Classification of Lanthanite-(Nd)
Classification of Lanthanite-(Nd)
5.CC.25
5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
15.4.2.2
15 : HYDRATED NORMAL CARBONATES
4 : AmBn(XO3)p·xH2O, with (m+n):p < 1:1
15 : HYDRATED NORMAL CARBONATES
4 : AmBn(XO3)p·xH2O, with (m+n):p < 1:1
11.8.4
11 : Carbonates
8 : Carbonates of the rare earths
11 : Carbonates
8 : Carbonates 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.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Ltn-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 Lanthanite-(Nd)
Vitreous, Pearly
Transparency:
Translucent
Colour:
Pale purple, light pink
Streak:
White
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Sectile
Cleavage:
Perfect
Perfect on {010}; very good on {101}.
Perfect on {010}; very good on {101}.
Fracture:
Irregular/Uneven
Density:
2.78 - 2.84 g/cm3 (Measured) 2.816 g/cm3 (Calculated)
Optical Data of Lanthanite-(Nd)
Type:
Biaxial (-)
RI values:
nα = 1.532 nβ = 1.590 nγ = 1.614
2V:
Measured: 58° to 61°, Calculated: 60° to 64°
Max. Birefringence:
δ = 0.082
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:
Moderate (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:
medium
Chemistry of Lanthanite-(Nd)
Mindat Formula:
Nd2(CO3)3 · 8H2O
Element Weights:
Elements listed:
Crystallography of Lanthanite-(Nd)
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Cell Parameters:
a = 9.476(4) Å, b = 16.940(8) Å, c = 8.942(4) Å
Ratio:
a:b:c = 0.559 : 1 : 0.528
Unit Cell V:
1,435.40 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Platy crystals
Twinning:
On {101}, common, twin and composition plane.
Comment:
Space Group: P bnb
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
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Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
|---|---|---|---|---|---|---|---|
| 0019766 | Lanthanite-(Nd) | Morrison S M, Andrade M B, Wenz M D, Domanik K J, Downs R T (2013) Lanthanite-(Nd), Nd2(CO3)3*8H2O Acta Crystallographica E69 i15-i16 |  | 2013 | Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.50 Å | (100) |
| 3.252 Å | (63) |
| 3.038 Å | (58) |
| 4.473 Å | (56) |
| 4.741 Å | (52) |
| 4.139 Å | (34) |
| 3.953 Å | (32) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Lanthanite-(Nd)
Place of Conservation of Type Material:
Pierre and Marie Curie University, Paris, France; Canadian Geological Survey, Ottawa, Canada, 12213; National Museum of Natural History, Washington, D.C., USA, 147003.
Synonyms of Lanthanite-(Nd)
Other Language Names for Lanthanite-(Nd)
Dutch:Lanthaniet-(Nd)
German:Lanthanit-(Nd)
Coutinit
Coutinit
Japanese:ネオジウムランタン石
Russian:Лантанит-(Nd)
Spanish:Coutinita
Relationship of Lanthanite-(Nd) to other Species
Member of:
Other Members of Lanthanite:
| Lanthanite-(Ce) | Ce2(CO3)3 · 8H2O | Orth. mmm(2/m2/m2/m) |
| Lanthanite-(La) | La2(CO3)3 · 8H2O | Orth. mmm(2/m2/m2/m) |
Common Associates
Associations Based on Photo Data:
| 4 photos of Lanthanite-(Nd) associated with Kimuraite-(Y) | Ca(Y,Nd)2(CO3)4 · 6H2O |
| 3 photos of Lanthanite-(Nd) associated with Kozoite-(Nd) | Nd(CO3)(OH) |
| 3 photos of Lanthanite-(Nd) associated with Cerianite-(Ce) | Ce4+O2 |
| 2 photos of Lanthanite-(Nd) associated with Lanthanite-(La) | La2(CO3)3 · 8H2O |
| 1 photo of Lanthanite-(Nd) associated with Clinoptilolite-Ca | Ca3(Si30Al6)O72 · 20H2O |
| 1 photo of Lanthanite-(Nd) associated with Siderite | FeCO3 |
| 1 photo of Lanthanite-(Nd) associated with Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| 1 photo of Lanthanite-(Nd) associated with Aragonite | CaCO3 |
| 1 photo of Lanthanite-(Nd) associated with Ilmenite | Fe2+TiO3 |
| 1 photo of Lanthanite-(Nd) associated with 'Hyalite' | SiO2 · nH2O |
Related Minerals - Strunz-mindat Grouping
| 5.CC. | Bainbridgeite-(NdCe) | Na2Ba2NdCe(CO3)6 · 3H2O |
| 5.CC. | Yuchuanite-(Y) | Y2(CO3)3 · H2O |
| 5.CC. | Alicewilsonite-(YCe) | Na2Sr2YCe(CO3)6 · 3H2O |
| 5.CC.05 | Donnayite-(Y) | NaCaSr3Y(CO3)6 · 3H2O |
| 5.CC.05 | Alicewilsonite-(YLa) | Na2Sr2YLa(CO3)6 · 3H2O |
| 5.CC.05 | Mckelveyite-(Nd) | NaCaBa3Nd(CO3)6 · 3H2O |
| 5.CC.05 | Mckelveyite-(Y) | NaCaBa3Y(CO3)6 · 3H2O |
| 5.CC.05 | Ewaldite | Ba(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2O |
| 5.CC.05 | 'UM1992-05-CO:CaCeLaNaSr' | (Sr,Na,Y,REE,Ca,Ba)2(CO3)2 · H2O |
| 5.CC.05 | Weloganite | Na2Sr3Zr(CO3)6 · 3H2O |
| 5.CC.05 | Mckelveyite Group | A3B3(CO3)6 · 3H2O |
| 5.CC.05 | Bainbridgeite-(YCe) | Na2Ba2YCe(CO3)6 · 3H2O |
| 5.CC.05 | 'Unnamed (MSH UK-37A)' | Sr3NaCaY(CO3)6 · 3H2O |
| 5.CC.10 | Tengerite-(Y) | Y2(CO3)3 · 2-3H2O |
| 5.CC.15 | Lokkaite-(Y) | Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O |
| 5.CC.15 | Kimuraite-(Y) | Ca(Y,Nd)2(CO3)4 · 6H2O |
| 5.CC.15 | Hizenite-(Y) | Ca2Y6(CO3)11 · 14H2O |
| 5.CC.20 | Shomiokite-(Y) | Na3Y[CO3]3 · 3H2O |
| 5.CC.25 | Lanthanite-(Ce) | Ce2(CO3)3 · 8H2O |
| 5.CC.25 | Lanthanite-(La) | La2(CO3)3 · 8H2O |
| 5.CC.25 | Calkinsite-(Ce) | (Ce,La)2(CO3)3 · 4H2O |
| 5.CC.30 | Adamsite-(Y) | NaY[CO3]2 · 6H2O |
| 5.CC.35 | Decrespignyite-(Y) | Cu(Y,REE)4(CO3)4(OH)5Cl · 2H2O |
| 5.CC.40 | Galgenbergite-(Ce) | Ca(Ce,La,Nd)2(CO3)4 · H2O |
| 5.CC.45 | Lecoqite-(Y) | Na3Y(CO3)3 · 6H2O |
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 Lanthanite-(Nd)
mindat.org URL:
https://www.mindat.org/min-2327.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Lanthanite-(Nd)
Reference List:
Hisinger, W. (1826) Versuch einer mineralogischen Geographie von Schweden. Johann Ambrosius Barth.p.144 - as Kohlensaures Ceroxydul
Beudant, François-Sulpice (1832) Traité élémentaire de minéralogie. Deuxiéme Edition [Elementary Treatise on Mineralogy. Second Edition] (2nd ed.) Vol. 2 - Tome II [Volume II]. Chez Verdière. p.354
Dana, James D. (1837) A System of Mineralogy (1st ed.)p.206 - as Carbonate of Cerium
Haidinger, Wilhelm (1845) Handbuch der bestimmenden Mineralogie, enthaltend die Terminologie, Systematik, Nomenklatur und Charakteristik der Naturgeschichte des Mineralreiches (1st ed.) Braumüller & Seidel, Vienna. p.500 - as lanthanit
Glocker, Ernst Friedrich (1847) Generum et specierum mineralium, secundum ordines naturales digestorum synopsis, omnium, quotquot adhuc reperta sunt, mineralium nomina complectens [A synopsis of the genera and species of minerals, according to their natural orders, including the names of all the minerals that have yet been discovered.]. Eduardus Anton. 348 pp. p.248 - as Hydrolanthanite
Fleischer, Michael, Cabri, Louis J. (1981) New Mineral Names. American Mineralogist, 66 (5-6) 637-639 pp.637-638
Localities for Lanthanite-(Nd)
Showing 15 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Brazil | |
| Waber (1991) +1 other reference |
| Gomes et al. (2023) | |
| Roberts et al. (1980) +1 other reference |
| Atencio (2023) |
| Coimbra et al. (1989) |
Germany | |
| Gröbner et al. (2011) |
Japan | |
| 皆川鉄雄 et al. (2001) |
| Takai et al. (2010) |
| Nagashima et al. (1986) |
| Miyawaki et al. (2003) | |
| Miyawaki et al. (2000) | |
New Zealand | |
| Graham et al. (2007) |
Norway | |
| Husdal (2009) |
| Husdal (2009) | |
Russia | |
| V.V. Seredin data |
Quick NavTopAbout Lanthanite-(Nd)Unique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand