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Parsonsite

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Arthur Leonard Parsons
Formula:
Pb2(UO2)(PO4)2
Water content appears to be variable.
Both 0-0.5H2O and ~2H2O per formula unit were measured.
System:
Triclinic
Colour:
Light citron-yellow, ...
Hardness:
2½ - 3
Name:
In honor of Arthur Leonard Parsons (1873-1957), Professor and Head of Mineralogy and Petrography, University of Toronto (1936-1943), Assistant Director (1920-1939) and Director (1939-1957) of the Royal Ontario Museum.
Hallimondite-Parsonsite Series.
The phosphate analogue of Hallimondite.

Classification of Parsonsite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
8.EA.10

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
A : UO2:RO4 = 1:2
40.2a.31.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
19.11.36

19 : Phosphates
11 : Phosphates of U
mindat.org URL:
http://www.mindat.org/min-3126.html
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Type Occurrence of Parsonsite

Place of Conservation of Type Material:
National School of Mines, Paris, France #123.89.
Year of Discovery:
1923

Physical Properties of Parsonsite

Sub-Adamantine, Greasy
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Light citron-yellow, honey-brown, green-brown, pale rose (rare); pale yellow in transmitted light.
Hardness (Mohs):
2½ - 3
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
5.72 - 5.75 g/cm3 (Measured)    6.21 g/cm3 (Calculated)

Crystallography of Parsonsite

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.89Å, b = 10.42Å, c = 6.68Å
α = 101.43°, β = 98.25°, γ = 86.28°
Ratio:
a:b:c = 0.661 : 1 : 0.641
Morphology:
Crystals lath-like, elongated [001] and flattened {010}, exhibiting {001}, {101}, and {100}. Radial-fibrous spherulites; commonly as crusts and powdery aggregates.

Optical Data of Parsonsite

Type:
Biaxial (-)
RI values:
nα = 1.850 nγ = 1.860
2V:
Measured: 11° to 26°
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Pleochroism:
Non-pleochroic

Chemical Properties of Parsonsite

Formula:
Pb2(UO2)(PO4)2

Water content appears to be variable.
Both 0-0.5H2O and ~2H2O per formula unit were measured.
Essential elements:
All elements listed in formula:

Relationship of Parsonsite to other Species

Series:
Forms a series with Hallimondite (see here)
8.EA.05Orthowalpurgite(BiO)4(UO2)(AsO4)2 · 2H2O
8.EA.05Walpurgite(BiO)4(UO2)(AsO4)2 · 3H2O
8.EA.05Phosphowalpurgite(BiO)4(UO2)(PO4)2 · 2H2O
8.EA.10HallimonditePb2(UO2)(AsO4)2 · nH2O, 0 ≤ n ≤ 0.5
8.EA.15UlrichiteCaCu(UO2)(PO4)2 · 4H2O
8.EA.20LakebogaiteCaNaFe23+H(UO2)2(PO4)4(OH)2 · 8H2O
19.11.1LermontoviteU(PO4)(OH) · H2O
19.11.2MetavanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 2H2O
19.11.3VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2O
19.11.4Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2O
19.11.5VyacheslaviteU(PO4)(OH) · nH2O
19.11.6MetanatroautuniteNa(UO2)(PO4)(H2O)3
19.11.7YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2O
19.11.8Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2O
19.11.9Uramphite(NH4)2(UO2)2(PO4)2 · 6H2O
19.11.10TorberniteCu(UO2)2(PO4)2 · 12H2O
19.11.11MetatorberniteCu(UO2)2(PO4)2 · 8H2O
19.11.12SaléeiteMg(UO2)2(PO4)2 · 10H2O
19.11.13NingyoiteCaU(PO4)2 · 1-2H2O
19.11.14Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
19.11.15AutuniteCa(UO2)2(PO4)2 · 11H2O
19.11.16Pseudo-autunite(H3O)4Ca2(UO2)2(PO4)4 · 5H2O
19.11.17PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2O
19.11.18Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
19.11.19UlrichiteCaCu(UO2)(PO4)2 · 4H2O
19.11.20BergeniteCa2Ba4(UO2)9(PO4)6O6 · 16H2O
19.11.21Metauranocircite-IBa(UO2)2(PO4)2 · 7H2O
19.11.22UranocirciteBa(UO2)2(PO4)2 · 10H2O
19.11.23RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2O
19.11.24TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2O
19.11.25MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2O
19.11.26UpaliteAl(UO2)3(PO4)2O(OH) · 7H2O
19.11.27FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2O
19.11.28ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2O
19.11.29PhuralumiteAl2(UO2)3(PO4)3(OH)2 · 13H2O
19.11.30MoreauiteAl3(UO2)(PO4)3(OH)2 · 13H2O
19.11.31SabugaliteHAl(UO2)4(PO4)4 · 16H2O
19.11.32Uranospathite(Al,☐)(UO2)2(PO4)2F · 20(H2O,F)
19.11.33AlthupiteAlTh(UO2)7(PO4)4(OH)5O2 · 15H2O
19.11.34Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2O
19.11.35Kivuite(Th,Ca,Pb)(UO2)4(HPO4)2(OH)8 · 7H2O
19.11.37DewindtiteH2Pb3(UO2)2(PO4)4O4 · 12H2O
19.11.38DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2O
19.11.39PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2O
19.11.40LehneriteMn2+(UO2)2(PO4)2 · 8H2O
19.11.41BassetiteFe2+(UO2)2(PO4)2 · 8H2O
19.11.42Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2O

Other Names for Parsonsite

Name in Other Languages:

Other Information

Other Information:
Radioactive. Soluble in acids.
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 Parsonsite

Reference List:
SCHOEP, A. (1923): Sur le parsonsite, nouveau minéral radioactif. Comptes Rendu, Academie des Sciences, Paris, 176, 171-173 (in French).

FRONDEL, C. (1950): Studies of uranium minerals (I): Parsonsite and randite. American Mineralogist 35, 245-250.

MAZZI, F., GARAVELLI, C.L. & RINALDI, F. (1959): Richerche strutturali sulla parsonite (sic). Rendiconti della Società Mineralogica Italiana 25, 364-365 (in Italian).

DELIENS, M., PIRET, P. & COMBLAIN, G. (1981) Les minéraux secondaires d’uranium du Zaïre. Published by Musée Royal de l’Afrique Central, Tavuren, Belgium, 64-65 (in french).

Billiet (1926) Bulletin de la Société française de Minéralogie: 49: 136.

Frondel, C. (1958) Systematic mineralogy of uranium and thorium. U.S. Geological Survey Bull. 1064: 233–236.

Burns, P.C. (2000) A new uranyl phosphate chain in the structure of parsonsite. American Mineralogist 85: 801-805.

Locock, A.J., Burns, P.C., Flynn, T.M. (2005): The role of water in the structures of synthetic hallimondite, Pb2[(UO2)(AsO4)2](H2O)n and synthetic parsonsite, Pb2[(UO2)(PO4)2](H2O)n, 0 ≤ n ≤ 0.5. American Mineralogist, 90, 240-246.

Burns, P.C. (2005) U6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Plášil, J., Čejka, J., Sejkora, J., Škácha, P. (2009): The question of water content in parsonsite: a model case - occurrence at the Červené žíly vein system, Jáchymov (St. Joachimsthal), Czech Republic. Journal of Geosciences, 54, 385–394.

Internet Links for Parsonsite

Localities for Parsonsite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Australia
 
  • Northern Territory
    • West Arnhem Region
      • Kakadu
Frost, Ray L. and Cejka, Jiri and Weier, Matt L. and Martens, Wayde N. (2006) A Raman spectroscopic study of the uranyl phosphate mineral parsonsite. Journal of Raman Spectroscopy 37(9):pp. 879-891.
Austria
 
  • Salzburg
    • Hohe Tauern
      • Gastein valley
        • Naßfeld valley
          • Kreuzkogel massif
            • Radhausberg
Auer, Ch. (2005)
Brazil
 
  • Minas Gerais
    • Jequitinhonha valley
      • Malacacheta district
        • Malacacheta
Stephan Wolfsried collection
Canada
 
  • Ontario
    • Algoma District
      • Peever Township
TRAILL, R.J. (1983): A catalogue of Canadian minerals, Geological Survey of Canada Paper
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Hradec Králové Region
      • Krkonoše Mtn (Riesengebirge)
        • Špindlerův Mlýn (Spindlermühle)
Plášil J., Sejkora J., Škoda R., Goliáš V. 2006: Supergene Y, REE minerals from the Medvědín deposit, the Krkonoše (Giant) Mts., Czech Repulic. Mineralogia Polonica, vol. 28, 181-183; Journal of Geosciences 54:15-56
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
          • Jáchymov (St Joachimsthal)
Plášil, J., Čejka, J., Sejkora, J., Škácha, P. (2009): The question of water content in parsonsite: a model case - occurrence at the Červené žíly vein system, Jáchymov (St. Joachimsthal), Czech Republic. Journal of Geosciences, 54, 385-394.
Lapis 2002(7/8), 54
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Javorník (Jauernig)
        • Horní Hostice
Pauliš, P., Novák, F., Ševců, J.: Sekundární minerály z uranového ložiska Jelení vrch u Horních Hoštic v Rychlebských horách. Acta Musei Moraviae, Scientiae geologicae, 2004, roč. 89, s. 121 - 138.
Sejkora, J.: Uranové ložisko Zálesí v Rychlebských horách. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1994, roč. 2, s. 105-110.
Democratic Republic of Congo (Zaïre) (TL)
 
  • Katanga (Shaba)
    • Katanga Copper Crescent
      • Shinkolobwe
SCHOEP, A. (1923): Sur le parsonsite, nouveau minéral radioactif. Comptes Rendu, Academie des Sciences, Paris, 176, 171-173. FRONDEL, C. (1950): Studies of uranium minerals (I): Parsonsite and randite. American Mineralogist 35, 245-250. MAZZI, F., GARAVELLI, C.L. & RINALDI, F. (1959): Richerche strutturali sulla parsonite (sic). Rendiconti della Società Mineralogica Italiana 25, 364-365. DELIENS, M., PIRET, P. & COMBLAIN, G. (1981) Les minéraux secondaires d’uranium du Zaïre. Published by Musée Royal de l’Afrique Central, Tavuren, Belgium, 64-65.
France
 
  • Auvergne
    • Allier
      • Ébreuil
        • Échassières
Le Règne Minéral, (33), 5-25.; CUCHET, S., BRUGGER, J., MEISSER, N., ANSERMET, S. & CHIAPPERO, P.-J. (2000): Les minéraux du filon Sainte-Barbe, Les Montmins, Allier. Le Règne Minéral, (33), 5-25.
    • Haute-Loire
      • La Chaise-Dieu
J.-J. Périchaud: "Les Minéraux d'Auvergne", Vol. 2, 1986
    • Puy-de-Dôme
      • Puy-Guillaume
Poughon, A. & Moreau, M. (1955): Les gisements à parsonsite de Lachaux. Sci. de la Terre 3, 193-235.
Le Règne Minéral, Hors Série IV (1998)
J. Chervet, G. Branche : "Contribution à l'étude des minéraux secondaires d'uranium français", ENSP Nancy, 1955
J. Chervet, G. Branche : "Contribution à l'étude des minéraux secondaires d'uranium français", ENSP Nancy, 1955
J. Geffroy, J.A. Sarcia, J. Chervet : "Les Minéraux Uranifères Français", 1960, Institut National des Sciences et Techniques Nucléaires / Saclay - PUF.
P.-C. Guiollard (2002), L'uranium du Morvan et du Forez, Ed. P.-C. Guiollard, Fichous(64), 95 pp.
J. Chervet, G. Branche : "Contribution à l'étude des minéraux secondaires d'uranium français", ENSP Nancy, 1955
J. Chervet, G. Branche : "Contribution à l'étude des minéraux secondaires d'uranium français", ENSP Nancy, 1955
J. Chervet, G. Branche : "Contribution à l'étude des minéraux secondaires d'uranium français", ENSP Nancy, 1955
J. Chervet, G. Branche : "Contribution à l'étude des minéraux secondaires d'uranium français", ENSP Nancy, 1955
Queneau Patrice Collection
  • Brittany
    • Côtes-d'Armor
      • Moncontour
Le Règne Minéral, Hors Série IV, 1998
    • Finistère
      • Brest
        • Bohars
Le Règne Minéral, Hors Série IV, 1998
    • Morbihan
      • Pontivy
        • Guern
Le Règne Minéral, Hors Série IV (1998)
  • Burgundy
    • Nièvre
Le Règne Minéral, Hors Série IV, 1998
    • Saône-et-Loire
      • Gueugnon
        • Neuvy-Grandchamp
Le Règne Minéral, Hors Série IV, 1998
      • Issy-l'Evêque
        • Grury
Le Règne Minéral, Hors Série IV, 1998
Frost, Ray L. and Cejka, Jiri and Weier, Matt L. and Martens, Wayde N. (2006) A Raman spectroscopic study of the uranyl phosphate mineral parsonsite. Journal of Raman Spectroscopy 37(9):pp. 879-891.
Le Règne Minéral, Hors Série IV, 1998
  • Languedoc-Roussillon
    • Lozère
      • Chateauneuf-de-Randon
        • Saint-Jean-la-Fouillouse
Le Règne Minéral, Hors Série IV, 1998
      • Grandrieu
Le Règne Minéral, Hors Série IV, 1998
  • Limousin
    • Creuse
Le Règne Minéral, Hors Série IV, 1998
    • Haute-Vienne
      • Bessines-sur-Gartempe
Le Règne Minéral, Hors Série IV, 1998
      • Compreignac
Le Règne Minéral, Hors Série IV, 1998
  • Rhône-Alpes
    • Loire
      • Saint-Just-en-Chevalet
        • Saint-Priest-la-Prugne
Le Règne Minéral, Hors Série IV, 1998
Le Règne Minéral, Hors Série IV, 1998
Le Règne Minéral, Hors Série IV, 1998; J.-J. Périchaud: "Où trouver les minéraux d'Auvergne", Vol. 1, Editions l'Instant Durable (Clermont-Ferrand), 1985, p. 92
Germany
 
  • Bavaria
    • Upper Palatinate
      • Wölsendorf Fluorite Mining District
        • Wölsendorf East District
          • Schwarzach bei Nabburg
            • Wölsendorf
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Zandt
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Saxony
    • Erzgebirge
      • Johanngeorgenstadt District
        • Steinbach
Gröbner, J., Grimm, O. & Zienau, H. (2005): Neufunde interessanter Wismut- und Uranmineralien am Schaarschacht, Johanngeorgenstadt, Sachsen. Lapis 30 (6), 44-51; 62.
      • Schneeberg District
        • Neustädtel
    • Vogtland
      • Oelsnitz
Gröbner, J. and Kolitsch, U. (2007): The minerals of the uranium prospect at Tirpersdorf, Vogtland. Lapis 32, 37-42; 58. (in German)
  • Thuringia
    • Wurzbach
      • Weitisberga
Wittern: "Mineralfundorte in Deutschland", 2001
Italy
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Antrona Valley
          • Montescheno
Biffi, P., Sbacchi, M., Sinelli, E. (1999): La pegmatite de I Mondei, Rivista Mineralogica Italiana, 23(1), 42-49.; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
  • Sardinia
    • Cagliari Province
      • Assemini
Ref: Daniele Ravagnani - I giacimenti uraniferi Italiani ed i loro minerali - Gruppo Mineralogico Lombardo-Museo Civico di Storia Naturale di Milano - Milano, 1974, pp. 160-164
Stara, P. (1990): La miniera di San Leone (CA). Rivista Mineralogica Italiana, 3/1990, 121-136.
      • Capoterra
Ref: Daniele Ravagnani - I giacimenti uraniferi Italiani ed i loro minerali - Gruppo Mineralogico Lombardo-Museo Civico di Storia Naturale di Milano - Milano, 1974, pp. 160-164; Mineralogical Record 18:3, 181-184
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Rudawy Janowickie Mts
      • Jelenia Góra District
Siuda R., Domańska-Siuda J. & Gołębiowska B. 2010: Secondary uranium minerals from the Miedzianka-Ciechanowice deposit (Rudawy Janowickie Mts., Poland). Mineralogia - Special Papers, vol. 37, 108
Portugal
 
  • Guarda District
    • Gouveia
      • Vila Cortês da Serra
    • Trancoso
      • Sebadelhe da Serra
Pedro Alves collection; Van King
  • Viseu District
    • Mangualde
      • Chãs de Tavares
        • Tragos
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
Rui Nunes 2011
USA
 
  • Arizona
    • Cochise Co.
      • Huachuca Mts
        • Hartford District (Huachuca Mountains District)
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 322.
  • Colorado
    • Fremont Co.
      • Eight Mile Park pegmatite District
"Minerals of Colorado, updated & revised", p. 15, by Eckel, Edwin B., 1997
Minerals of Colorado (1997) Eckel, E. B.
    • Gunnison Co.
      • Tomichi District
Minerals of Colorado (1997) Eckels, E. B.
Minerals of Colorado (1997) Eckels, E. B.
  • Connecticut
    • Middlesex Co.
      • Portland
        • Collins Hill
          • Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries)
Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
  • New Hampshire
    • Grafton Co.
      • Grafton
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 914.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Mineral and/or Locality  
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