Parisite-(La)
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
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.
Unique Identifiers
Mindat ID:
47935
Long-form identifier:
mindat:1:1:47935:8
GUID
(UUID V4):
(UUID V4):
73bfda4f-aad6-4f10-aa35-5bb3f0279eba
IMA Classification of Parisite-(La)
Approved
Approval year:
2016
First published:
2018
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 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 |
|---|---|---|
| Pst-La | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC 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
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Comments:
Described as pseudo-uniaxial (+)
Chemistry of Parisite-(La)
Mindat Formula:
CaLa2(CO3)3F2
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 Ă
Âł
Z:
12
Comment:
Space group is C2, Cm, or C2/m
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.958 Ă | (27) |
| 4.655 Ă | (100) |
| 3.552 Ă | (48) |
| 2.817 Ă | (26) |
| 2.323 Ă | (12) |
| 2.051 Ă | (13) |
| 1.876 Ă | (8) |
| 1.659 Ă | (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 CiĂȘncia e TĂ©cnica, 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, L.A.D., Chaves, M.L.S.C., Chukanov, N.V., Atencio, D., Scholz, R., Pekov, I.V., da Costa, G.M. Morrison, S.M., Andrade, M.B., Freitas, E.T.F., Downs, R.T., Belakovskiy, D.I. (2018) Parisite-(La), CaLa2(CO3)3F2, a new mineral from Novo Horizonte, Bahia, Brazil. Mineralogical Magazine: 82: 133-144.
Synonyms of Parisite-(La)
Other Language Names for Parisite-(La)
German:Parisit-(La)
Relationship of Parisite-(La) to other Species
Member of:
Other Members of this group:
| Parisite-(Ce) | CaCe2(CO3)3F2 | Mon. m : Bb |
| Parisite-(Nd) | Ca(Nd,Ce,La)2(CO3)3F2 |
Common Associates
Associated Minerals Based on Photo Data:
| 1 photo of Parisite-(La) associated with BastnÀsite-(La) | La(CO3)F |
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 | Lukechangite-(Ce) | Na3Ce2(CO3)4F |
| 5.BD.05 | Unnamed (Cordylite-like (Ca0.5[]0.5)BaCe2[CO3]4F) | Caâ»Ba2Ce4[CO3]8F2 |
| 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.20a | BastnÀsite-(Ce) | Ce(CO3)F |
| 5.BD.20a | BastnÀsite-(La) | La(CO3)F |
| 5.BD.20a | BastnÀsite-(Y) | Y(CO3)F |
| 5.BD.20a | HydroxylbastnÀsite-(Ce) | Ce(CO3)(OH) |
| 5.BD.20a | HydroxylbastnÀsite-(Nd) | Nd(CO3)(OH) |
| 5.BD.20a | HydroxylbastnÀsite-(La) | (La,Nd,Ce)(CO3)(OH,F) |
| 5.BD.20b | Parisite-(Ce) | CaCe2(CO3)3F2 |
| 5.BD.20b | Parisite-(Nd) | Ca(Nd,Ce,La)2(CO3)3F2 |
| 5.BD.20d | Röntgenite-(Ce) | Ca2(Ce,La)3(CO3)5F3 |
| 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 | ThorbastnÀsite | ThCa(CO3)2F2 · 3H2O |
| 5.BD.20a | BastnÀsite-(Nd) | Nd(CO3)F |
| 5.BD.20c | Hydroxylsynchysite-(Ce) | Ca(Ce,La)(CO3)2(OH) |
| 5.BD.20c | Synchysite-(La) | Ca(La,Nd)(CO3)2F |
| 5.BD.25 | HorvĂĄthite-(Y) | NaY(CO3)F2 |
| 5.BD.25 | Qaqarssukite-(Ce) | Ba(Ce,REE)(CO3)2F |
| 5.BD.35 | Huanghoite-(Ce) | BaCe(CO3)2F |
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.
Search Engines:
External Links:
Mineral Dealers:
References for Parisite-(La)
Localities for Parisite-(La)
symbol to view information about a locality.
The 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.
Brazil (TL) | |
| |
Romania | |
|
Quick NavTopAbout Parisite-(La)Unique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Mula Mine, Tapera, Novo Horizonte District, Novo Horizonte, Bahia, Brazil