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Masuyite

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About MasuyiteHide

Formula:
Pb(UO2)3O3(OH)2 · 3H2O
Crystal System:
Orthorhombic
Name:
After Gustave Masuy (born Brugge, Belgium, on February 9th 1905 and passed away in Brussels on June 9th 1945), Belgian geologist.
Might actually represent two different species (cf. Deliens & Piret, 1996). The crystal structure of masuyite was determined by Burns & Hanchar (1999).


Classification of MasuyiteHide

Approved, 'Grandfathered' (first described prior to 1959)
4.GB.35

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
B : With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
5.2.2.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
2 : AXO3·xH2O
7.16.27

7 : Oxides and Hydroxides
16 : Oxides of U

Optical Data of MasuyiteHide

Type:
Biaxial (-)
RI values:
nα = 1.785 nβ = 1.895 nγ = 1.915
2V:
Measured: 50° , Calculated: 44°
Max Birefringence:
δ = 0.130
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
extreme

Chemical Properties of MasuyiteHide

Formula:
Pb(UO2)3O3(OH)2 · 3H2O

Crystallography of MasuyiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 13.98 Å, b = 12.11 Å, c = 14.2 Å
Ratio:
a:b:c = 1.154 : 1 : 1.173
Unit Cell V:
2,404.03 ų (Calculated from Unit Cell)

Type Occurrence of MasuyiteHide

Other Language Names for MasuyiteHide

German:Masuyit
Spanish:Masuyita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Uranophane7 photos of Masuyite associated with Uranophane on mindat.org.
Richetite6 photos of Masuyite associated with Richetite on mindat.org.
Uraninite5 photos of Masuyite associated with Uraninite on mindat.org.
Becquerelite2 photos of Masuyite associated with Becquerelite on mindat.org.
Fourmarierite2 photos of Masuyite associated with Fourmarierite on mindat.org.
Rutherfordine2 photos of Masuyite associated with Rutherfordine on mindat.org.
Metatorbernite1 photo of Masuyite associated with Metatorbernite on mindat.org.
Wölsendorfite1 photo of Masuyite associated with Wölsendorfite on mindat.org.
Microcline1 photo of Masuyite associated with Microcline on mindat.org.
Albite-Anorthite Series1 photo of Masuyite associated with Albite-Anorthite Series on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.GB.05AgrinieriteK2(Ca,Sr)[(UO2)3O3(OH)2]2 · 5H2OOrth.
4.GB.05CompreignaciteK2(UO2)6O4(OH)6 · 7H2OOrth.
4.GB.05RameauiteK2Ca(H[3]2O)(H[5]2O)4[(UO2)6O6(OH)4](H[4]2O)Mon. m : Bb
4.GB.10BecquereliteCa(UO2)6O4(OH)6 · 8H2OOrth. mm2 : Pna21
4.GB.10BillietiteBa(UO2)6O4(OH)6 · 4-8H2OOrth. mm2
4.GB.10ProtasiteBa(UO2)3O3(OH)2 · 3H2OMon.
4.GB.15Richetite(Fe3+,Mg)Pb 8.6(UO2)36O36(OH)24•41H2O Tric.
4.GB.20BauranoiteBa(UO2)2(OH)6 · 1-2H2O
4.GB.20Calciouranoite(Ca,Ba,Pb)U2O7 · 5H2O
4.GB.20Metacalciouranoite(Ca,Ba,Pb,K2)U2O7 · 2H2O
4.GB.25FourmarieritePb(UO2)4O3(OH)4 · 4H2OOrth.
4.GB.30WölsendorfitePb7(UO2)14O19(OH)4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
4.GB.40MetavandendriesscheitePbU7O22 · nH2O n < 12Orth.
4.GB.40VandendriesscheitePbU7O22 · 12H2O
4.GB.45VandenbrandeiteCu(UO2)(OH)4Tric. 1 : P1
4.GB.50SayritePb2(UO2)5O6(OH)2 · 4H2OMon.
4.GB.55CuritePb3(UO2)8O8(OH)6 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pnma
4.GB.60Iriginite(UO2)Mo2O7 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pbcm
4.GB.65UranosphaeriteBi(UO2)O2(OH)Mon. 2/m
4.GB.70HolfertiteCaxU6+2-xTi(O8-xOH4x) · 3H2OTrig. 3 : P3

Related Minerals - Dana Grouping (8th Ed.)Hide

5.2.2.PaulscherreriteUO2(OH)2Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.16.1UraniniteUO2Iso. m3m (4/m 3 2/m) : Fm3m
7.16.2Schoepite(UO2)8O2(OH)12 · 12H2OOrth. mmm (2/m 2/m 2/m) : Pbca
7.16.3ParaschoepiteUO3 · 2H2OOrth.
7.16.4Metaschoepite(UO2)8O2(OH)12 · 10H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
7.16.5MetastudtiteUO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.16.6Studtite[(UO2)(O2)(H2O)2] · H2OMon.
7.16.7IanthiniteU4+(UO2)5O7 · 10H2OOrth. mm2 : Amm2
7.16.8CompreignaciteK2(UO2)6O4(OH)6 · 7H2OOrth.
7.16.9VandenbrandeiteCu(UO2)(OH)4Tric. 1 : P1
7.16.10RoubaultiteCu2(UO2)3(CO3)2O2(OH)2•4H2OTric. 1 : P1
7.16.11BecquereliteCa(UO2)6O4(OH)6 · 8H2OOrth. mm2 : Pna21
7.16.12RameauiteK2Ca(H[3]2O)(H[5]2O)4[(UO2)6O6(OH)4](H[4]2O)Mon. m : Bb
7.16.13AgrinieriteK2(Ca,Sr)[(UO2)3O3(OH)2]2 · 5H2OOrth.
7.16.14ProtasiteBa(UO2)3O3(OH)2 · 3H2OMon.
7.16.15BillietiteBa(UO2)6O4(OH)6 · 4-8H2OOrth. mm2
7.16.16BauranoiteBa(UO2)2(OH)6 · 1-2H2O
7.16.17Metacalciouranoite(Ca,Ba,Pb,K2)U2O7 · 2H2O
7.16.18Calciouranoite(Ca,Ba,Pb)U2O7 · 5H2O
7.16.19OrthobranneriteU4+U6+Ti4O12(OH)2Orth.
7.16.20Thorutite(Th,U,Ca)Ti2(O,OH)6Mon.
7.16.21Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
7.16.22Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
7.16.23Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6Mon. 2/m : B2/m
7.16.24FourmarieritePb(UO2)4O3(OH)4 · 4H2OOrth.
7.16.25Richetite(Fe3+,Mg)Pb 8.6(UO2)36O36(OH)24•41H2O Tric.
7.16.26CuritePb3(UO2)8O8(OH)6 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.16.28VandendriesscheitePbU7O22 · 12H2O
7.16.29MetavandendriesscheitePbU7O22 · nH2O n < 12Orth.
7.16.30SayritePb2(UO2)5O6(OH)2 · 4H2OMon.
7.16.31WölsendorfitePb7(UO2)14O19(OH)4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
7.16.32Clarkeite(Na,Ca,Pb)(UO2)O(OH) · 0-1H2OTrig.
7.16.33UranosphaeriteBi(UO2)O2(OH)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 MasuyiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vaes, J.F. (1947) Six nouveaux minéraux d'urane provenant de Shinkolobwe (Katanga). Annales de la Société Géologique Belge: 70: B212-B229.
American Mineralogist (1948): 33: 384.
Deliens, M., Piret, P. (1996) Les masuyites de Shinkolobwe constituent un groupe formé par deux variétés distinctes par leur composition chimique et leurs propriétés radiocristallographiques. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique: 66: 187-192. (in French)
Burns, P.C., Hanchar, J.M. (1999) The structure of masuyite, Pb[(UO2)3O3(OH)2](H2O)3, and its relationship to protasite. Canadian Mineralogist: 37: 1483-1491.
Burns, P.C. (2005) U6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for MasuyiteHide

Localities for MasuyiteHide

ⓘ - 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.
Australia
 
  • Northern Territory
    • West Arnhem Region
      • South Alligator River
Czech Republic
 
  • Central Bohemia Region
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Březové Hory ore region (Birkenberg)
        • Březové Hory deposit
Ondruš, P. & Hyršl, J. (1989): New finds and revision of secondary minerals from Příbram district. Acta Universitatis Carolinae, Geologica 1989, 521-533.; Ondrus+Hyrsl (1989)
  • Karlovy Vary Region
    • Krušné Hory Mts (Erzgebirge)
      • Jáchymov District (St Joachimsthal)
Lapis 2002(7/8), 63-65
  • Liberec Region
    • Harrachov (Harrachsdorf)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
  • Olomouc Region
    • Javorník (Jauernig)
      • Horní Hoštice
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.
Democratic Republic of the Congo (TL)
 
  • Katanga (Shaba)
    • Kambove District
      • Shinkolobwe
[AmMin 85:1565]
    • Kolwezi District
      • Kamoto
      • Kolwezi
Wilson, W. E. (2018) The Musonoi mine, Kolwezi District, Lualaba Province, Democratic Republic of the Congo. Mineralogical Record 49:236-304
Finland
 
  • Lapland Region
    • Enontekiö
Al-Ani, Thair and Pakkanen, Lassi (2013): Mini-Atlas of REE-minerals in Finnish Bedrocks. Geologian Tutkimuskeskus/Geological Survey of Finland; Thair Al-Ani! and Olli Sarapää (2013) REE-Rich Accessory Minerals in Carbonatitic, Alkaline, Appinitic and Metasomatichydrothermal Rocks, Central and Northern Finland. Geologian tutkimuskeskus, Tutkimusraportti 198 – Geological Survey of Finland, Report of Investigation 198, Pentti Hölttä (ed.) pp 17-21
France
 
  • Auvergne-Rhône-Alpes
    • Puy-de-Dôme
      • Puy-Guillaume
        • Lachaux
P.-C. Guiollard (2002), L'uranium du Morvan et du Forez, Ed. P.-C. Guiollard, Fichous(64), 95 pp.
  • Occitanie
    • Hérault
      • Le Puech
[Le Règne Minéral 1997, 13, p.5-18]
      • Lodève
[Le Cahier des Micromonteurs, 1998, 2, p.13-26]
Le Règne Minéral, Hors Série IV (1998)
India
 
  • Rajasthan (Rajputana)
    • Ajmer Division
      • Bhilwara District
Current Science, 92, 5, 592-4, 2007
Italy
 
  • Trentino-South Tyrol
    • Trento
      • Giudicarie Valleys
        • Chiese Valley
          • Condino
Campostrini, I., Demartin, F., & Gramaccioli, C. M. (2006). Rio Giulis. Minerali secondari del giacimento uranifero presso Condino, Trento. Rivista Mineralogica Italiana, 30(3), 152-165.
          • Daone
            • Daone Valley
              • Limes
Campostrini, I., Demartin, F., Gramaccioli, C.M. (2005): Val Daone. Minerali secondari del giacimento uranifero presso Limes, Daone (TN). Rivista Mineralogica Italiana, 4/2005, 228-240.
Poland
 
  • Lower Silesia
    • Legnica
      • Lubin District
Kucha H. 2007: Mineralogia kruszcowa i geochemia ciała rudnego złoża Lubin-Sieroszowice. Biuletyn PIG, vol. 423, pp. 77-94
Russia
 
  • Republic of Karelia
    • Northern Karelia
Pavel M. Kartashov analytical data (2014)
  • Zabaykalsky Krai
    • Chitinskaya Oblast
      • Krasnokamensk
Pavel M. Kartashov analytical data (2012)
Switzerland
 
  • Wallis (Valais)
    • Le Trient Valley
      • Finhaut
        • Emosson
Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
Stalder, H. A., Wagner, A., Graeser, S. und Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf Verlag, Basel, 579 pp.
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 269.
Zambia
 
  • North-Western Province
    • Solwezi District
American Mineralogist: 59: 1139
Mineral and/or Locality  
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