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Metazeunerite

A valid IMA mineral species - grandfathered
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Cu(UO2)2(AsO4)2 · 8H2O
Colour:
Grass-green, emerald-green; green in transmitted light
Lustre:
Vitreous, Pearly
Hardness:
2 - 2½
Specific Gravity:
3.64
Crystal System:
Tetragonal
Member of:
Meta-autunite Group
Name:
Named in 1937 by Aleksandr Evgenievich Fersman and Olga Mikhailovna Shubnikova for "Meta" for a lower hydration state and its relationship to zeunerite.
Type Locality:
ⓘWalpurgis Flacher vein, Weißer Hirsch Mine (shaft 3), Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
Meta-autunite Group.

A rare secondary mineral in the oxidized zones of arsenic-bearing hydrothermal uranium deposits. Commonly originates due to dehydration ofzeunerite.


Unique Identifiers

Classification of Metazeunerite

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
Dana 8th ed.:
40.2a.14.2

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
Hey's CIM Ref.:
20.7.4

20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U

Mineral Symbols
Transparency:
Transparent, Translucent
Comment:
Lustre pearly on {001}.
Colour:
Grass-green, emerald-green; green in transmitted light
Streak:
Greenish white
Hardness:
2 - 2½ onMohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {001}, perfect; on {010}, distinct.
Fracture:
Irregular/Uneven
Density:
3.64 g/cm3 (Measured)    3.87 g/cm3 (Calculated)

Optical Data of Metazeunerite
Surface Relief:
Moderate
Pleochroism:
Weak
Comments:
Weakly dichroic in transmitted light.
O = Green
E = Pale green, bluish, colourless
Comments:
Indices of refraction vary continuously with the content of zeolitic water within the limits of the phase.

Chemistry of Metazeunerite

Crystallography of Metazeunerite
Epitaxy Comments:
Oriented growths of metazeunerite on trögerite and uranospinite, with parallel axes.

X-Ray Powder Diffraction
Place of Conservation of Type Material:
State Museum of Mineralogy and Geology, Dresden, Germany. Mining Academy, Freiberg, Germany: #21730.

Other Language Names for Metazeunerite

Relationship of Metazeunerite to other Species
Other Members of Meta-autunite Group:
AbernathyiteK(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) :P4/ncc
Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm
LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon. 2/m
Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm
Meta-autuniteCa(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m)
MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2OMon. 2 :P21
MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2OTric.1 :P1
MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2OTric.1 :P1
MetalodèviteZn(UO2)2(AsO4)2 · 10H2OTet. 4/m :P42/m
MetanatroautuniteNa(UO2)(PO4)(H2O)3Tet. 4/mmm(4/m2/m2/m) :P4/ncc
MetanováčekiteMg(UO2)2(AsO4)2 · 8H2OTet. 4/m :P4/n
MetarauchiteNi(UO2)2(AsO4)2 · 8H2OTric.1 :P1
MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m :P4/n
MetauranocirciteBa(UO2)2(PO4)2 · 7H2OMon. 2 :P21
MetauranospiniteCa(UO2)2(AsO4)2 · 8H2OTet. 4/m :P42/n
NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm
Trögerite(H3O)(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm
Uramarsite(NH4)(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) :P4/mmm
Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm
Forms a series with:
MetatorberniteMetatorbernite-Metazeunerite Series

Common Associates8.EB.05RauchiteNi(UO2)2(AsO4)2 · 10H2OTric.1 :P18.EB.05UranocirciteBa(UO2)2(PO4)2 · 10H2OTet.8.EB.05UranospiniteCa(UO2)2(AsO4)2 · 10H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm8.EB.05ZeuneriteCu(UO2)2(AsO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) :I4/mmm8.EB.05MetarauchiteNi(UO2)2(AsO4)2 · 8H2OTric.1 :P18.EB.05HeinrichiteBa(UO2)2(AsO4)2 · 10H2OMon. 2/m :P2/b8.EB.05KahleriteFe(UO2)2(AsO4)2 · 12H2OTet. 4/m :P42/n8.EB.05HydronováčekiteMg(UO2)2(AsO4)2 · 12H2OTric.1 :P18.EB.05TorberniteCu(UO2)2(PO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) :I4/mmm8.EB.05NováčekiteMg(UO2)2(AsO4)2 · 10H2OMon. 2/m8.EB.05AutuniteCa(UO2)2(PO4)2 · 10-12H2OOrth.mmm(2/m2/m2/m) :Pnma8.EB.05SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m8.EB.05Xiangjiangite(Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2OTet.8.EB.10BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m8.EB.10LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon. 2/m8.EB.10Meta-autuniteCa(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m)8.EB.10MetasaléeiteMg(UO2)2(PO4)2 · 8H2O8.EB.10MetauranocirciteBa(UO2)2(PO4)2 · 7H2OMon. 2 :P218.EB.10MetauranospiniteCa(UO2)2(AsO4)2 · 8H2OTet. 4/m :P42/n8.EB.10MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2OMon. 2 :P218.EB.10MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2OTric.1 :P18.EB.10MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2OTric.1 :P18.EB.10MetanováčekiteMg(UO2)2(AsO4)2 · 8H2OTet. 4/m :P4/n8.EB.10MetanatroautuniteNa(UO2)(PO4)(H2O)3Tet. 4/mmm(4/m2/m2/m) :P4/ncc8.EB.10MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m :P4/n8.EB.10PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2OTet.8.EB.10Pseudo-autunite(H3O)4Ca2(UO2)2(PO4)4 · 5H2OOrth.8.EB.15AbernathyiteK(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) :P4/ncc8.EB.15Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm8.EB.15Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm8.EB.15NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm8.EB.15Trögerite(H3O)(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm8.EB.15Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) :P4/nmm8.EB.15Uramarsite(NH4)(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) :P4/mmm8.EB.20ChistyakovaiteAl(UO2)2(AsO4)2(F,OH) · 6.5H2OMon.8.EB.20ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.8.EB.25Uranospathite(Al,◻)(UO2)2(PO4)2F · 20(H2O,F)Orth.mm2 :Pnn28.EB.25ArsenuranospathiteAl(UO2)2(AsO4)2F · 20H2OOrth.mm2 :Pnn28.EB.30Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2OMon.8.EB.35CoconinoiteFe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2OMon.8.EB.40RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2OMon. 2/m :B2/b8.EB.45TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2OTric.8.EB.50FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2OTric.1 :P18.EB.55SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m :B2/m8.EB.60Horákite(Bi7O7OH)[(UO2)4(PO4)2(AsO4)2(OH)2] · 3.5H2OMon. 2/m :B2/b

Radioactivityshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).

D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield

Fluorescence of Metazeunerite

Other Information
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    • References for MetazeuneriteⓘLa Esperanza MineRaúl Joreg Tauber Larry
    Australia
     
    Rankin et al. (2002)+1 other referenceHenry et al. (2005)Munro-Smith (2006)Johnson (1981)Nickel et al. (1993)Ferguson (1999)
    Austria
     
    Kolitsch et al. (2019)Schachinger et al. (2015)Schreieck E. et al. (2022)Kolitsch (2014)54 (in German)+1 other reference58.+2 other referencesExel (1993)Kolitsch (2016)
    Brazil
     
    Cassedanne et al. (1978)Moura et al. (2007)+1 other reference
    Canada
     
    Peatfield (n.d.)Hogarth (1951)
    Chile
     
    EDS analisis+1 other referenceEDS-SEM analysis+1 other referenceSamples analysed by Dr. Jochen Schlüter (Hamburg University)samples analysed by Dr. Tony Kampf+2 other referencesYang et al. (2011)
    China
     
    Shen (n.d.)Jeff Scovil
    Czech Republic
     
    PlášilPlášil J. et al. (2008)Poirier et al. (2011)Lapis 2002 (7/8)+1 other referencePlášil et al. (2014)+1 other referencePauliš P. et al. (Kutna Hora, issue 1)Rojík (2005)Rojík (2005)Sejkora (1994)Bull mineral petrolog 27+2 other references
    DR Congo
     
    De Bondt (n.d.)Deliens (1996)
    Europe
     
    Jansa et al. (1998)+1 other reference
    France
     
    J. GeffroyY. Vessely collectionFavreau G. et al. (1996)Wittern et al. (1997)Wittern et al. (1997)Hohl (1994)Escande et al. (1973)+6 other referencesEscande et al. (1973)+6 other referencesMeisser et al. (2008)Hatert et al. (2020)- (1998)- (1998)Caubel (1997)+1 other reference- (1998)Palache et al. (1951)+1 other reference
    Germany
     
    Walenta (1992)Walenta (1996)Walenta (1992)Walenta (1992)Walenta (1992)[Wittern (1995)Blaß et al. (2000)Walenta (1992)Walenta (1992)Walenta (1992)Walenta (1992)Slotta (2004)Weiß (1990)Walenta (1992)Steen (2007)Walenta (1992)Walenta (1992)Weiß (1990)Walenta (1992)Walenta (1992)Hanneberg et al. (2009)+1 other referenceWeiß (1990)Gröbner et al. (2011)Der Aufschluss 2000 (2)G. Dreyer (3)Weiß (1990)N. Jb. Miner. Abh. 115 (1971)Aufschluss 69/ (7+8)+1 other referenceNoll (1984)Wittern (2001)Wittern (2001)Weiß (1990)Weiß (1990)Desor (05/2020)Gröbner et al. (2006)Bode Verlag+2 other referenceshttps://www.mineralienatlas.de/?l=3390Hajek (2010)www.dergraul.de (2001)Plášil et al. (2010)+1 other referenceGeochemist's and Mineralogist's Compendium (1937)+2 other referencesGröbner et al. (2005)Gröbner J.+1 other referenceThorne (n.d.)
    India
     
    Verma et al. (2018)
    Iran
     
    Bariand et al. (1993)
    Italy
     
    Ciriotti et al. (2021)Ciriotti et al. (2021)Giuseppe Finello and Bruno Marello ...Ferretti et al. (2017)Ravagnani (1974)Campostrini et al. (2006)Vecchi et al. (2013)Campostrini et al. (2005)doi:10.3390/min8060248+2 other referencesLIBVRNA N°2 September 2021Millosevich F. (1912)+2 other referencesDomenico Saccardo et al. (2019)+1 other reference
    Japan
     
    Mineralogical Journal+1 other reference
    Kazakhstan
     
    Pavel.M. Kartashov (n.d.)Kopchenova et al. (1962)+3 other references
    Mexico
     
    Joan Rosell (2022)
    Morocco
     
    Favreau et al. (2006)
    Namibia
     
    Schnaitmann et al. (2007)Herbert Nägele collectionKeller et al. (1986)
    Norway
     
    Husdal (2019)
    Poland
     
    Mochnacka et al. (2000)+2 other referencesMacioch et al. (2018)Kucha (2021)Kucha (2021)
    Portugal
     
    Pavel M. Kartashov analytical data
    Russia
     
    Pekov I.V. et al. (2010) ...Зубрев И.НNazarchuk et al. (2023)Kasatkin et al. (2014)+1 other referenceEremin et al. (2023)
    Slovakia
     
    Martin Števko-unpublishedHoppanová E. et al. (2021)
    South Africa
     
    Cairncross et al. (1995)Cairncross et al. (1995)
    Spain
     
    Calvo Rebollar (2015)Castillo-Oliver et al. (2019)Joan Rosell (2021)www.foro-minerales.com (n.d.)www.foro-minerales.com (n.d.)Joan Vinals & Miguel Calvo (2007)Casanova Honrubia
    Switzerland
     
    Meisser (1999)Stalder et al. (1998)Gorsatt (Ed.)Stalder et al. (1998)Stalder et al. (1998)Cuchet et al. (2005)Meisser (2012)Stalder et al. (1998)
    UK
     
    Bruce et al. (1998)Palache et al. (1951)+1 other referenceS. Rust collectionRocks & Min.: 60 (1)+2 other referencesGolley et al. (1995)Golley et al. (1995)Braithwaite et al. (1990)Day (1999)R. S. W. Braithwaite and J. R. Knight (1990)+1 other reference
    USA
     
    - (2008)- (2008)- (2008)Frondel (1958)+3 other referencesHolland et al. (1958)+1 other referenceGalbraith (1959)Galbraith (1959)Galbraith (1959)Galbraith (1959)Leicht (1971)+1 other referenceGornitz (2004)Granger (1969)+1 other referenceGalbraith (1959)+1 other referenceTroxel et al. (1962)+2 other referencesMacKevett et al. (1960)+2 other referencesWalker et al. (1956)+2 other referencesWalker et al. (1956)+1 other referenceWalker et al. (1956)+2 other referencesDunning et al. (2005)Eckel et al. (1997)Rocks & Minerals: SeptEckel et al. (1997)Eckel et al. (1997)Eckel et al. (1997)Gross (1965)+1 other referenceRocks & Min.:65:59.Meschter (1953)+1 other referenceCastor et al. (2004)Nevada Bureau of Mines and Geology NBMG ...+1 other referenceAmeican Mineralogist+2 other referencesB. Wilkens collection.Dunn (1995)+1 other referenceSmith and Hoff (1984)Smith and Hioff (1984)Eric Quinter collectionRoberts et al. (1965)Roberts et al. (1965)Roberts et al. (1965)Collected by and in the collection of+1 other referenceBullock (1981)Bullock (1981)Bullock (1981)Bullock (1981)Bullock (1981)Bullock (1981)Page et al. (1956)+2 other referencesThomspon et al. (1956)+1 other referenceBullock (1981)Palache et al. (1951)Bullock (1981)Page et al. (1956)+2 other referencesBullock (1981)Bullock (1981)Bullock (1981)King et al. (1995)collected by and in the collection of ...Page et al. (1956)+1 other referenceBullock (1981)USGS TEI #514+2 other referencesTrites et al. (1958)+1 other referenceKokinos et al. (1993)Kokinos et al. (1993)Bullock (1981)Page et al. (1956)+2 other referencesHausel et al. (2001)
    Uzbekistan
     
    Pekov (1998)+1 other reference
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