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Parisite-(La)
A valid IMA mineral species
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About Parisite-(La)
Formula:
CaLa2(CO3)3F2
Colour:
Yellow-green to white
Lustre:
Vitreous, Dull
Hardness:
4 - 5
Specific Gravity:
4.273 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
Named for its relationship to parisite-(Ce) and parisite-(Nd), and for the dominant REE being lanthanum. The root name is in honor of J.J. Paris, former manager of the Muzo emerald mine, Muzo, Columbia, and leasee of the mine from 1828-1848.
Type Locality:
Unique Identifiers
Mindat ID:
47935
Long-form identifier:
mindat:1:1:47935:8
Similar Names
| Arisite | ||
| Arisite-(Ce) | A valid IMA mineral species | NaCe2(CO3)2[F2x(CO3)1-x]F |
| Arisite-(La) | A valid IMA mineral species | NaLa2(CO3)2[F2x(CO3)1-x]F |
| Parasite | A synonym of Boracite | |
| Parisite | A group of related mineral species | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Parisite-(Ce) | A valid IMA mineral species - grandfathered | CaCe2(CO3)3F2 |
| Parisite-(Nd) | A valid IMA mineral species | Ca(Nd,Ce,La)2(CO3)3F2 |
| Pearceite | A valid IMA mineral species - grandfathered | [Ag6As2S7][Ag9CuS4] |
| Priceite | A valid IMA mineral species - grandfathered | Ca2B5O7(OH)5 · H2O |
IMA Classification of Parisite-(La)
Approved
Approval year:
2016
First published:
2018
Type description reference:
Menezes Filho, Luiz A. D., Chaves, Mario L. S. C., Chukanov, Nikita V., Atencio, Daniel, Scholz, Ricardo, Pekov, Igor, da Costa, Geraldo Magela, Morrison, Shaunna M., Andrade, Marcelo B., Freitas, Erico T. F., Downs, Robert T., Belakovskiy, Dmitriy I. (2018) Parisite-(La), ideally CaLa2(CO3)3F2, a new mineral from Novo Horizonte, Bahia, Brazil. Mineralogical Magazine, 82 (1) 133-144 doi:10.1180/minmag.2017.081.028
Classification of Parisite-(La)
5.BD.20b
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
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 |
|---|---|---|
| Pst-La | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Pst | 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 Parisite-(La)
Vitreous, Dull
Transparency:
Transparent
Comment:
A vitreous (when yellow-green) to dull (when white) lustre
Colour:
Yellow-green to white
Streak:
White
Hardness:
4 - 5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
on pseudo-{001}
on pseudo-{001}
Fracture:
Irregular/Uneven, Conchoidal
Density:
4.273 g/cm3 (Calculated)
Optical Data of Parisite-(La)
Type:
Uniaxial (+)
RI values:
nω = 1.670(2) nε = 1.782
Max. Birefringence:
δ = 0.112
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
Comments:
Described as pseudo-uniaxial (+)
Chemistry of Parisite-(La)
Mindat Formula:
CaLa2(CO3)3F2
Element Weights:
Crystallography of Parisite-(La)
Crystal System:
Monoclinic
Cell Parameters:
a = 12.356(1) Å, b = 7.1368(7) Å, c = 28.299(3) Å
β = 98.342(4)°
β = 98.342(4)°
Ratio:
a:b:c = 1.731 : 1 : 3.965
Unit Cell V:
2469.1 ų
Z:
12
Comment:
Space group is C2, Cm, or C2/m
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.958 Å | (27) |
| 4.655 Å | (100) |
| 3.552 Å | (48) |
| 2.817 Å | (26) |
| 2.323 Å | (12) |
| 2.051 Å | (13) |
| 1.876 Å | (8) |
| 1.659 Å | (73) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites | |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Parisite-(La)
General Appearance of Type Material:
As residual nuclei (up to 5 mm) in steep doubly-terminated pseudo-hexagonal pyramidal crystals (up to 8.2 cm).
Place of Conservation of Type Material:
(1) Mineralogical collections of the Museu de Ciência e Técnica, Escola de Minas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil (registration number SAD2016-031),and (2) at the University of Arizona Mine nr R130687
Geological Setting of Type Material:
A hydrothermal vein crosscutting a metarhyolite.
Associated Minerals at Type Locality:
Reference:
Menezes Filho, Luiz A. D., Chaves, Mario L. S. C., Chukanov, Nikita V., Atencio, Daniel, Scholz, Ricardo, Pekov, Igor, da Costa, Geraldo Magela, Morrison, Shaunna M., Andrade, Marcelo B., Freitas, Erico T. F., Downs, Robert T., Belakovskiy, Dmitriy I. (2018) Parisite-(La), ideally CaLa2(CO3)3F2, a new mineral from Novo Horizonte, Bahia, Brazil. Mineralogical Magazine, 82 (1) 133-144 doi:10.1180/minmag.2017.081.028
Synonyms of Parisite-(La)
Other Language Names for Parisite-(La)
Dutch:Parisiet-(La)
German:Parisit-(La)
Relationship of Parisite-(La) to other Species
Member of:
Other Members of Parisite:
| Parisite-(Ce) | CaCe2(CO3)3F2 | Mon. m : Bb |
| Parisite-(Nd) | Ca(Nd,Ce,La)2(CO3)3F2 | Mon. m : Bb |
Common Associates
Associations Based on Photo Data:
| 1 photo of Parisite-(La) associated with Gysinite-(Ce) | PbCe(CO3)2(OH) · H2O |
| 1 photo of Parisite-(La) associated with Bastnäsite-(La) | La(CO3)F |
| 1 photo of Parisite-(La) associated with Monazite-(La) | La(PO4) |
| 1 photo of Parisite-(La) associated with Rhabdophane-(La) | La(PO4) · H2O |
Related Minerals - Strunz-mindat Grouping
| 5.BD. | Cordylite-(La) | (Na,Ca)Ba(La,Ce,Sr)2(CO3)4F |
| 5.BD.05 | Cordylite-(Ce) | NaBaCe2(CO3)4F |
| 5.BD.05 | 'Unnamed (Cordylite-like Calcium-Barium-Cerium Carbonate-Fluoride)' | Ca◻Ba2Ce4[CO3]8F2 |
| 5.BD.05 | Lukechangite-(Ce) | Na3Ce2(CO3)4F |
| 5.BD.10 | 'Zhonghuacerite-(Ce)' | Ba2Ce(CO3)3F |
| 5.BD.10 | Kukharenkoite-(Ce) | Ba2Ce(CO3)3F |
| 5.BD.10 | Kukharenkoite-(La) | Ba2(La,Ce,Th)(CO3)3F |
| 5.BD.15 | Cebaite-(Ce) | Ba3Ce2(CO3)5F2 |
| 5.BD.15 | 'Cebaite-(Nd)' | Ba3(Nd,Ce)2(CO3)5F2 |
| 5.BD.18 | Arisite-(Ce) | NaCe2(CO3)2[F2x(CO3)1-x]F |
| 5.BD.18 | Arisite-(La) | NaLa2(CO3)2[F2x(CO3)1-x]F |
| 5.BD.20c | Synchysite-(Ce) | CaCe(CO3)2F |
| 5.BD.20c | Synchysite-(Nd) | CaNd(CO3)2F |
| 5.BD.20c | Synchysite-(Y) | CaY(CO3)2F |
| 5.BD.20a | Bastnäsite-(Ce) | Ce(CO3)F |
| 5.BD.20b | Parisite-(Ce) | CaCe2(CO3)3F2 |
| 5.BD.20a | Bastnäsite-(La) | La(CO3)F |
| 5.BD.20b | Parisite-(Nd) | Ca(Nd,Ce,La)2(CO3)3F2 |
| 5.BD.20a | Bastnäsite-(Y) | Y(CO3)F |
| 5.BD.20d | Röntgenite-(Ce) | Ca2(Ce,La)3(CO3)5F3 |
| 5.BD.20a | Thorbastnäsite | ThCa(CO3)2F2 · 3H2O |
| 5.BD.20a | Hydroxylbastnäsite-(Ce) | Ce(CO3)(OH) |
| 5.BD.20a | Hydroxylbastnäsite-(Nd) | Nd(CO3)(OH) |
| 5.BD.20c | 'Hydroxylsynchysite-(Ce)' | Ca(Ce,La)(CO3)2(OH) |
| 5.BD.20c | 'Synchysite-(La)' | Ca(La,Nd)(CO3)2F |
| 5.BD.20a | Bastnäsite-(Nd) | Nd(CO3)F |
| 5.BD.20a | Hydroxylbastnäsite-(La) | (La,Nd,Ce)(CO3)(OH,F) |
| 5.BD.25 | Qaqarssukite-(Ce) | Ba(Ce,REE)(CO3)2F |
| 5.BD.25 | Horváthite-(Y) | NaY(CO3)F2 |
| 5.BD.35 | Huanghoite-(Ce) | BaCe(CO3)2F |
| 5.BD.35 | Huanghoite-(Nd) | BaNd(CO3)2F |
| 5.BD.45 | Bayanoboite-(Y) | Ba2Y(CO3)2F3 |
Other Information
IR Spectrum:
The IR spectrum confirms the absence of OH groups
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 Parisite-(La)
mindat.org URL:
https://www.mindat.org/min-47935.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Parisite-(La)
Reference List:
Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2016) New minerals and nomenclature modifications approved in 2016, CNMNC Newsletter 32. Mineralogical Magazine, 80 (5) 915-922 doi:10.1180/minmag.2016.080.084
Menezes Filho, Luiz A. D., Chaves, Mario L. S. C., Chukanov, Nikita V., Atencio, Daniel, Scholz, Ricardo, Pekov, Igor, da Costa, Geraldo Magela, Morrison, Shaunna M., Andrade, Marcelo B., Freitas, Erico T. F., Downs, Robert T., Belakovskiy, Dmitriy I. (2018) Parisite-(La), ideally CaLa2(CO3)3F2, a new mineral from Novo Horizonte, Bahia, Brazil. Mineralogical Magazine, 82 (1) 133-144 doi:10.1180/minmag.2017.081.028
Localities for Parisite-(La)
Showing 2 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 (TL) | |
| Menezes Filho et al. (2018) +1 other reference |
Romania | |
| Hirtopanu (2006) |
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Paulo de Mudo claim, Novo Horizonte, Bahia, Brazil