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Gasparite-(La)

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Formula:
LaAsO4
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.
This page provides mineralogical data about Gasparite-(La).


Hide all sections | Show all sections

Classification of Gasparite-(La)Hide

Approved
Approval Year:
2018
First Published:
2019
8.AD.50

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations

Physical Properties of Gasparite-(La)Hide

Sub-Metallic
Transparency:
Translucent
Colour:
Yellow (in polished sections)

Chemical Properties of Gasparite-(La)Hide

Formula:
LaAsO4

Chemical AnalysisHide

Empirical formulas:
Sample IDEmpirical Formula
1(La0.59Ce0.37Nd0.02Ca0.02Th0.01)1.01[(As0.81P0.16Si0.02S0.02)1.01O4]
2(La0.65Ce0.17Nd0.07Ca0.06Mn0.05Pr0.02)1.02[(As0.70V0.28P0.02)1.00O4]

Crystallography of Gasparite-(La)Hide

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)°
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 DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.21Å(22)
3.60Å(20)
3.39Å(46)
3.17Å(100)
2.98Å(62)
2.02Å(24)
1.94Å(25)
1.79Å(22)

Type Occurrence of Gasparite-(La)Hide

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, O.S., Britvin, S.N., Perova, E.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V., Bocharov, V.N., van der Burgt, A., Cuchet, S., Meisser, N. (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: 1469-1480.

Synonyms of Gasparite-(La)Hide

Other Language Names for Gasparite-(La)Hide

Relationship of Gasparite-(La) to other SpeciesHide

Member of:
Other Members of this group:
CheraliteCaTh(PO4)2Mon. 2/m
Gasparite-(Ce)Ce(AsO4)Mon. 2/m : P21/m
Monazite-(Ce)Ce(PO4)Mon. 2/m : P21/b
Monazite-(La)La(PO4)Mon. 2/m : P21/m
Monazite-(Nd)Nd(PO4)Mon. 2/m
Monazite-(Sm)Sm(PO4)Mon. 2/m : P21/m
RooseveltiteBi(AsO4)Mon. 2/m
Unnamed (Gd-dominant monazite)(Gd,Y,Dy,Sm,Nd,Th,Ca)(PO4)

Related Minerals - Nickel-Strunz GroupingHide

8.AD.05NahpoiteNa2HPO4Mon. 2/m : P21/m
8.AD.10MonetiteCa(HPO4)Tric. 1
8.AD.10WeiliteCa(HAsO4)Tric. 1 : P1
8.AD.10ŠvenekiteCa(H2AsO4)2Tric. 1 : P1
8.AD.15Archerite(K,NH4)(H2PO4)Tet. 4 2m : I4 2d
8.AD.15BiphosphammiteNH4(H2PO4)Tet. 4 2 2 : I41 2 2
8.AD.20Phosphammite(NH4)2(HPO4)Mon. 2/m : P21/b
8.AD.25BuchwalditeNaCa(PO4)Orth. mm2 : Pmn21
8.AD.30SchultenitePb(HAsO4)Mon. 2/m : P2/b
8.AD.35Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35DreyeriteBi(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Y)Y(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Xenotime-(Y)Y(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35PretuliteSc(PO4)Tet.
8.AD.35Xenotime-(Yb)Yb(PO4)Tet.
8.AD.35Wakefieldite-(La)La(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Nd)Nd(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.40PucheriteBi(VO4)Orth. mmm (2/m 2/m 2/m)
8.AD.45XimengiteBi(PO4)Trig.
8.AD.50Gasparite-(Ce)Ce(AsO4)Mon. 2/m : P21/m
8.AD.50Monazite-(Ce)Ce(PO4)Mon. 2/m : P21/b
8.AD.50Monazite-(La)La(PO4)Mon. 2/m : P21/m
8.AD.50Monazite-(Nd)Nd(PO4)Mon. 2/m
8.AD.50RooseveltiteBi(AsO4)Mon. 2/m
8.AD.50CheraliteCaTh(PO4)2Mon. 2/m
8.AD.50Monazite-(Sm)Sm(PO4)Mon. 2/m : P21/m
8.AD.50UM2005-35-VO:CaFePSiTh(Th,Ca)(VO4,SiO4,PO4)
8.AD.55TetrarooseveltiteBi(AsO4)Tet.
8.AD.60Chursinite(Hg+2)0.5Hg2+(AsO4)Mon. 2/m : P21/b
8.AD.65ClinobisvaniteBi(VO4)Mon. 2/m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Gasparite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Schwarz, H. (1963) The phosphates, arsenates, and vanadates of the rare earths. Zeitschrift für anorganische und allgemeine Chemie: 323: 44-56. (in German)
Botto, I.L., Baran, E.J. (1982) Characterization of the monoclinic rare earth orthoarsenates. Journal of the Less Common Metals: 83: 255-261.
Pradhan, A.K., Choudhary, R.N.P. (1987) Dielectric and thermal properties of LaAsO4. Journal of Materials Science: 22: 2955-2958.
Cabella, R., Lucchetti, G., Marescotti, P. (1999) Occurrence of LREE- and Y-arsenates from a Fe-Mn deposit, Ligurian Briançonnais Domain, Maritime Alps, Italy. The Canadian Mineralogist: 37: 961-972. [as unnamed LaAsO4]
Kolitsch, U., Ciriotti, M.E., Cadoni, M., Armellino, G., Piccoli, G.C., Ambrino, P., Blass, G., Odicino, G., Ciuffardi, M. (2011) Montaldo di Mondovì - Minerali della miniera di manganese e ferro. Micro: 9: 4-21.
Le Berre, J.-F., Gauvin, R., Demopoulos, G.P. (2007) Synthesis, Structure, and Stability of Gallium Arsenate Dihydrate, Indium Arsenate Dihydrate, and Lanthanum Arsenate. Industrial & Engineering Chemistry Research: 46: 7875-7882. [monazite-type]
Vereshchagin, O.S., Perova, E.N., Britvin, S.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V., Bocharov, V.N. (2018) Gasparite-(La), IMA 2018-079. CNMNC Newsletter No. 46, December 2018, page xxxx; Mineralogical Magazine, 82: xxxx–xxxx.
Vereshchagin, O.S., Britvin, S.N., Perova, E.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V., Bocharov, V.N., van der Burgt, A., Cuchet, S., Meisser, N. (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: 1469-1480.

Internet Links for Gasparite-(La)Hide

Localities for Gasparite-(La)Hide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Salzburg
    • Tamsweg District
      • Taurach valley
Kolitsch et al. (to be published)
  • Tyrol
    • Innsbruck-Land District
      • Obernberg am Brenner
Kolitsch, U., Schachinger, T. & Auer, C. (2018): 2076) Aegirin, Aegirin-Augit, Albit, Baddeleyit, Baryt, Brandtit(?), Braunit, Calcit, Canosioit, Clinosuenoit (ehemals „Manganocummingtonit“), Coelestin, Diaspor, Dolomit, Fluorapatit (As-haltig), Fluorcalcioroméit, Gamagarit, Hämatit, Hausmannit, Hjalmarit, Hollandit, Hydroxycalcioroméit, Klinochlor, Kutnohorit, Mischkristalle Manganiandrosit-(La) - Manganiakasakait-(La), Nambulit, Phlogopit, Piemontit, Pyrobelonit, Sb-haltiger Pyrophanit, Quarz, Ranciéit(?), Rhodochrosit, Rhodonit, Richterit, Rutil, Spessartin, Talk, Thorit, Tremolit, Tilasit, Titanit, Tokyoit, Wakefieldit-(Ce), Wakefieldit-(Y), Zirkon, das Sb-Analogon von Hydroxymanganopyrochlor und unbenanntes LaAsO4 vom Obernberger Tribulaun, Nordtirol - ein erster Bericht über mineralogisch komplexe, linsenförmige metamorphe Manganvererzungen. Pp. 206-213 in Walter, F. et al. (2018): Neue Mineralfunde aus Österreich LXVII. Carinthia II, 208./128., 185-254. [as unnamed LaAsO4]
Italy
 
  • Aosta Valley
    • Saint-Marcel
Frank K. Mazdab collection (see https://www.rockptx.com/fkm-151-to-fkm-175/#FKM-171 for normalized analysis); Frank K. Mazdab collection (see https://www.rockptx.com/fkm-151-to-fkm-175/#FKM-171 for analytical data)
  • Piedmont
    • Cuneo Province
      • Montaldo di Mondovì
        • Borgata Oberti
Cabella, R., Lucchetti, G. and Marescotti, P. (1999) Occurrence of LREE- and Y-arsenates from a Fe-Mn deposit, Ligurian Briançonnais Domain, Maritime Alps, Italy. Canadian Mineralogist 37, 961-972. [as unnamed LaAsO4]; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.; Kolitsch, U., Ciriotti, M.E., Cadoni, M., Armellino, G., Piccoli, G.C., Ambrino, P., Blass, G., Odicino, G., Ciuffardi, M. (2011) Montaldo di Mondovì Minerali della miniera di manganese e ferro. Micro, 9, 4-21. [as unnamed LaAsO4]
Kazakhstan (TL)
 
  • Karaganda Region
    • Karazhal
      • Zhayrem (Zhairem)
        • Ushkatyn deposits (Ushkatan)
Vereshchagin, O.S., Perova, E.N., Britvin, S.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V. and Bocharov, V.N. (2018) Gasparite-(La), IMA 2018-079. CNMNC Newsletter No. 46, December 2018, page xxxx; Mineralogical Magazine, 82: xxxx–xxxx. Vereshchagin, O.S., Britvin, S.N., Perova, E.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V., Bocharov, V.N., van der Burgt, A., Cuchet, S., Meisser, N. (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, 1469-1480.
Switzerland (TL)
 
  • Valais
    • Goms
      • Binn
Vereshchagin, O.S., Britvin, S.N., Perova, E.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V., Bocharov, V.N., van der Burgt, A., Cuchet, S., Meisser, N. (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, 1469-1480.
 
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