Gasparite-(La)
A valid IMA mineral species
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About Gasparite-(La)
Formula:
La(AsO4)
Colour:
Yellow (in polished sections)
Lustre:
Sub-Metallic
Crystal System:
Monoclinic
Member of:
Name:
Gasparite-(La) is named for its relation to gasparite-(Ce) and its dominant lanthanide, according to current nomenclature of rare-earth minerals.
Unique Identifiers
Mindat ID:
53197
Long-form identifier:
mindat:1:1:53197:7
Similar Names
| Gasparite | A synonym | |
| Gasparite-(Ce) | A valid IMA mineral species | Ce(AsO4) |
| Kasparite | A variety of Pickeringite | (Mg,Co)Al2(SO4)4 · 22H2O |
IMA Classification of Gasparite-(La)
Approved
IMA Formula:
La3+(As5+O4)
Approval year:
2018
First published:
2019
Type description reference:
Vereshchagin, Oleg S., Britvin, Sergey N., Perova, Elena N., Brusnitsyn, Aleksey I., Polekhovsky, Yury S., Shilovskikh, Vladimir V., Bocharov, Vladimir N., van der Burgt, Ate, Cuchet, Stéphane, Meisser, Nicolas (2019) Gasparite-(La), La(AsO4), a new mineral from Mn ores of the Ushkatyn-III deposit, Central Kazakhstan, and metamorphic rocks of the Wanni glacier, Switzerland. American Mineralogist, 104 (10) 1469-1480 doi:10.2138/am-2019-7028
Classification of Gasparite-(La)
8.AD.50
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
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 |
|---|---|---|
| Gsp-La | 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 Gasparite-(La)
Chemistry of Gasparite-(La)
Mindat Formula:
La(AsO4)
Element Weights:
Elements listed:
Chemical Analysis
Oxide wt%:
| 1 | |
|---|---|
| SO3 | 0.04 % |
| P2O5 | 3.61 % |
| V2O5 | 11.35 % |
| As2O5 | 21.39 % |
| SiO2 | 0.23 % |
| ThO2 | 2.49 % |
| La2O3 | 28.42 % |
| Ce2O3 | 1.79 % |
| Pr2O3 | 7.64 % |
| Nd2O3 | 18.69 % |
| Sm2O3 | 0.56 % |
| Gd2O3 | 0.03 % |
| (HREE2O3) (predicted) | 0.07 % |
| Fe2O3* | 0.11 % |
| CaO | 0.29 % |
| SrO | 0.44 % |
| PbO | 0.01 % |
| Total: | 97.16 % |
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 2 | (La0.59Ce0.37Nd0.02Ca0.02Th0.01)1.01[(As0.81P0.16Si0.02S0.02)1.01O4] |
| 3 | (La0.65Ce0.17Nd0.07Ca0.06Mn0.05Pr0.02)1.02[(As0.70V0.28P0.02)1.00O4] |
| 1 | (La0.48Nd0.30Pr0.13Ce0.03Th0.03Ca0.01Sm0.01Sr0.01)[As0.51V0.34P0.14Si0.01O4] |
Sample references:
Crystallography of Gasparite-(La)
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 6.7646(4) Å, b = 7.2184(9) Å, c = 7.0040(4) Å
β = 104.51(1)°
β = 104.51(1)°
Ratio:
a:b:c = 0.937 : 1 : 0.97
Unit Cell V:
331.09 ų (Calculated from Unit Cell)
Morphology:
Isometric grains; elongated crystals
Comment:
Space group P21/n (CNMNC Newsletter No. 46).
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.21 Å | (22) |
| 3.60 Å | (20) |
| 3.39 Å | (46) |
| 3.17 Å | (100) |
| 2.98 Å | (62) |
| 2.02 Å | (24) |
| 1.94 Å | (25) |
| 1.79 Å | (22) |
Reference:
Vereshchagin, Oleg S., Britvin, Sergey N., Perova, Elena N., Brusnitsyn, Aleksey I., Polekhovsky, Yury S., Shilovskikh, Vladimir V., Bocharov, Vladimir N., van der Burgt, Ate, Cuchet, Stéphane, Meisser, Nicolas (2019) Gasparite-(La), La(AsO4), a new mineral from Mn ores of the Ushkatyn-III deposit, Central Kazakhstan, and metamorphic rocks of the Wanni glacier, Switzerland. American Mineralogist, 104 (10) 1469-1480 doi:10.2138/am-2019-7028
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 5: Initiation of plate tectonics | <3.5-2.5 |
| 40 : Regional metamorphism (greenschist, amphibolite, granulite facies) |
Type Occurrence of Gasparite-(La)
Co-Type Localities:
General Appearance of Type Material:
Minute isometric grains up to 15 μm in size (Ushkatyn-III) and as elongated crystals up to 2 mm in size (Wanni glacier).
Place of Conservation of Type Material:
Type material is deposited in the collections of the Mineralogical Museum, Department of Mineralogy, St. Petersburg State University, St. Petersburg, Russia, catalogue number 19692 (holotype)
Empirical Formula of Type Material:
(La0.65Ce0.17Nd0.07Ca0.06Mn0.05Pr0.02)1.02[(As0.70V0.28P0.02)1.00O4]
Geological Setting of Type Material:
Alpine fissures in metamorphic rocks + Mn ores (calcite-rhodochrosite veinlets)
Associated Minerals at Type Locality:
Reference:
Vereshchagin, Oleg S., Britvin, Sergey N., Perova, Elena N., Brusnitsyn, Aleksey I., Polekhovsky, Yury S., Shilovskikh, Vladimir V., Bocharov, Vladimir N., van der Burgt, Ate, Cuchet, Stéphane, Meisser, Nicolas (2019) Gasparite-(La), La(AsO4), a new mineral from Mn ores of the Ushkatyn-III deposit, Central Kazakhstan, and metamorphic rocks of the Wanni glacier, Switzerland. American Mineralogist, 104 (10) 1469-1480 doi:10.2138/am-2019-7028
Synonyms of Gasparite-(La)
Other Language Names for Gasparite-(La)
Dutch:Gaspariet-(La)
German:Gasparit-(La)
Relationship of Gasparite-(La) to other Species
Member of:
Other Members of Gasparite Group:
| Gasparite-(Ce) | Ce(AsO4) | Mon. 2/m |
| 'Unnamed (Nd-dominant Gasparite)' | Nd(AsO4) | Mon. 2/m |
Common Associates
Associations Based on Photo Data:
| 2 photos of Gasparite-(La) associated with Pyrophanite | Mn2+TiO3 |
| 2 photos of Gasparite-(La) associated with Rhodochrosite | MnCO3 |
| 2 photos of Gasparite-(La) associated with Rhodonite | CaMn3Mn[Si5O15] |
| 2 photos of Gasparite-(La) associated with Amphibole Supergroup | AB2C5(T8O22)W2 |
| 2 photos of Gasparite-(La) associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 8.AD. | 'Unnamed (Monoclinic polymorph of ximengite)' | Bi(PO4) |
| 8.AD. | Keplerite | Ca9(Ca0.5◻0.5)Mg(PO4)7 |
| 8.AD. | Mazorite | Ba3(PO4)2 |
| 8.AD. | Deynekoite | Ca9◻Fe3+(PO4)7 |
| 8.AD. | Monazite-(Gd) | Gd(PO4) |
| 8.AD.05 | Nahpoite | Na2(PO3OH) |
| 8.AD.10 | Weilite | Ca(HAsO4) |
| 8.AD.10 | Švenekite | Ca(H2AsO4)2 |
| 8.AD.10 | Monetite | Ca(PO3OH) |
| 8.AD.15 | Archerite | (K,NH4)(H2PO4) |
| 8.AD.15 | Biphosphammite | NH4(H2PO4) |
| 8.AD.20 | Phosphammite | (NH4)2(PO3OH) |
| 8.AD.25 | Buchwaldite | NaCa(PO4) |
| 8.AD.30 | Schulténite | Pb(HAsO4) |
| 8.AD.35 | Dreyerite | Bi(VO4) |
| 8.AD.35 | Wakefieldite-(La) | La(VO4) |
| 8.AD.35 | Anningite-(Ce) | (Ca0.5Ce4+0.5)(VO4) |
| 8.AD.35 | Pretulite | Sc(PO4) |
| 8.AD.35 | Wakefieldite-(Ce) | Ce(VO4) |
| 8.AD.35 | Wakefieldite-(Y) | Y(VO4) |
| 8.AD.35 | Xenotime-(Yb) | Yb(PO4) |
| 8.AD.35 | 'Chernovite-(Ce)' | (Ce,Y)(AsO4) |
| 8.AD.35 | Xenotime-(Gd) | Gd(PO4) |
| 8.AD.35 | Chernovite-(Y) | Y(AsO4) |
| 8.AD.35 | Xenotime-(Y) | Y(PO4) |
| 8.AD.35 | Wakefieldite-(Nd) | Nd(VO4) |
| 8.AD.40 | Pucherite | Bi(VO4) |
| 8.AD.45 | Ximengite | Bi(PO4) |
| 8.AD.50 | 'UM2005-35-VO:CaFePSiTh' | (Th,Ca)(VO4,SiO4,PO4) |
| 8.AD.50 | Rooseveltite | Bi(AsO4) |
| 8.AD.50 | Gasparite-(Ce) | Ce(AsO4) |
| 8.AD.50 | Monazite-(Sm) | Sm(PO4) |
| 8.AD.50 | Monazite-(Ce) | Ce(PO4) |
| 8.AD.50 | Monazite-(La) | La(PO4) |
| 8.AD.50 | Monazite-(Nd) | Nd(PO4) |
| 8.AD.50 | Cheralite | CaTh(PO4)2 |
| 8.AD.55 | Tetrarooseveltite | Bi(AsO4) |
| 8.AD.60 | Chursinite | [Hg2]2+Hg2+2[AsO4]2 |
| 8.AD.65 | Clinobisvanite | Bi(VO4) |
| 8.AD.70 | Gurimite | Ba3(VO4)2 |
| 8.AD.75 | Picaite | NaCa[AsO3OH][AsO2(OH)2] |
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 Gasparite-(La)
mindat.org URL:
https://www.mindat.org/min-53197.html
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References for Gasparite-(La)
Reference List:
Botto, I.L, Baran, E.J (1982) Characterization of the monoclinic rare earth orthoarsenates. Journal of the Less Common Metals, 83 (2). 255-261 doi:10.1016/0022-5088(82)90275-2
Pradhan, A. K.; Choudhary, R. N. P. (1987) Dielectric and thermal properties of LaAs04. Journal of Materials Science, 22 (8). 2955-2958 doi:10.1007/bf01086496
Kolitsch, Uwe; Holtstam, Dan (2004) Crystal chemistry of REEXO4 compounds (X = P, As, V). II. Review of REEXO4 compounds and their stability fields. European Journal of Mineralogy, 16 (1). 117-126 doi:10.1127/0935-1221/2004/0016-0117
Schmidt, Marcus, Müller, Ulf, Cardoso Gil, Raul, Milke, Edgar, Binnewies, Michael (2005) Zum chemischen Transport und zur Kristallstruktur von Seltenerdarsenaten(V) [Chemical vapour transport and crystal structure of rare-earth arsenates(V)]. Zeitschrift für anorganische und allgemeine Chemie, 631 (6). 1154-1162 doi:10.1002/zaac.200400544
Hålenius, Ulf, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2018) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) NEWSLETTER 46. European Journal of Mineralogy, 30 (6) 1181-1189 doi:10.1127/ejm/2018/0030-2819
Vereshchagin, Oleg S., Britvin, Sergey N., Perova, Elena N., Brusnitsyn, Aleksey I., Polekhovsky, Yury S., Shilovskikh, Vladimir V., Bocharov, Vladimir N., van der Burgt, Ate, Cuchet, Stéphane, Meisser, Nicolas (2019) Gasparite-(La), La(AsO4), a new mineral from Mn ores of the Ushkatyn-III deposit, Central Kazakhstan, and metamorphic rocks of the Wanni glacier, Switzerland. American Mineralogist, 104 (10) 1469-1480 doi:10.2138/am-2019-7028
Localities for Gasparite-(La)
Showing 11 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.
Austria | |
| Kolitsch et al. +1 other reference |
| Kolitsch et al. (2018) |
Italy | |
| Frank K. Mazdab collection |
| Balestra et al. (2020) |
| Cabella et al. (1999) +2 other references |
Kazakhstan (TL) | |
| Hålenius et al. (2018) +1 other reference |
North Macedonia | |
| Galuskina et al. (2026) |
| Ermolaeva et al. (2019) | |
Norway | |
| Husdal (2023) |
Russia | |
| Kasatkin et al. (2021) |
Switzerland (TL) | |
| Vereshchagin et al. (2019) |
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Wanni glacier - Scherbadung area, Binn, Goms, Valais, Switzerland