Metazeunerite
About Metazeunerite
A rare secondary mineral in the oxidized zones of arsenic-bearing hydrothermal uranium deposits. Commonly originates due to dehydration of zeunerite.
Unique Identifiers
Classification of Metazeunerite
The autunite-type sheet found in members of the meta-autunite group and shared with members of the autunite group.
IMA Classification of Metazeunerite
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U
Mineral Symbols
| Symbol | Source | Reference for Standard |
|---|---|---|
| Mzeu | 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 Metazeunerite
On {001}, perfect; on {010}, distinct.
Optical Data of Metazeunerite
Based on recorded range of RI values above.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Relative to Canada balsam mounting medium (n ≈ 1.537).
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
O = Green
E = Pale green, bluish, colourless
Chemistry of Metazeunerite
Crystallography of Metazeunerite
Crystal Structure
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0011098 | Metazeunerite | Hennig C, Reck G, Reich T, Robberg A, Kraus W, Sieler J (2003) EXAFS and XRD investigations of zeunerite and meta-zeunerite Zeitschrift fur Kristallographie 218 37-45 | ![]() | 2003 | synthetic | 0 | 293 |
| 0011097 | Metazeunerite | Hennig C, Reck G, Reich T, Robberg A, Kraus W, Sieler J (2003) EXAFS and XRD investigations of zeunerite and meta-zeunerite Zeitschrift fur Kristallographie 218 37-45 | ![]() | 2003 | synthetic | 0 | 293 |
| 0012422 | Metazeunerite | Hanic F (1960) The crystal structure of meta-zeunerite Cu(UO2)2(AsO4)2*8H2O Czechoslovak Journal of Physics B10 169-181 | 1960 | Rotava, Ore Mountains, Czech Republic | 0 | 293 | |
| 0005833 | Metazeunerite | Locock A J, Burns P C (2003) Crystal structures and synthesis of the copper-dominant members of the autunite and meta-autunite groups: Torbernite, zeunerite, metatorbernite and metazeunerite The Canadian Mineralogist 41 489-502 | ![]() | 2003 | 0 | 293 |
Epitaxial Relationships of Metazeunerite
| 'Trögerite' | (H3O)(UO2)(AsO4) · 3H2O |
| 'Uranospinite' | Ca(UO2)2(AsO4)2 · 10H2O |
X-Ray Powder Diffraction
| d-spacing | Intensity |
|---|---|
| 8.86 Å | (10) |
| 5.57 Å | (8) |
| 5.10 Å | (6) |
| 3.73 Å | (10) |
| 3.57 Å | (7) |
| 3.30 Å | (8) |
| 1.561 Å | (6) |
Geological Environment
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47f : [Uranyl (U⁶⁺) minerals] |
Type Occurrence of Metazeunerite
Other Language Names for Metazeunerite
Relationship of Metazeunerite to other Species
| Abernathyite | K(UO2)(AsO4) · 3H2O | Tet. 4/mmm(4/m2/m2/m) : P4/ncc |
| Arsenosabugalite | H0.5Al0.5(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
| Chernikovite | (H3O)2(UO2)2(PO4)2 · 6H2O | Tet. 4/mmm(4/m2/m2/m) : P4/nmm |
| Lehnerite | Mn2+(UO2)2(PO4)2 · 8H2O | Mon. 2/m |
| Meta-ankoleite | K2(UO2)2(PO4)2 · 6H2O | Tet. 4/mmm(4/m2/m2/m) : P4/nmm |
| Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O | Tet. 4/mmm(4/m2/m2/m) |
| Metaheinrichite | Ba(UO2)2(AsO4)2 · 8H2O | Mon. 2 : P21 |
| Metakahlerite | Fe2+(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
| Metakirchheimerite | Co(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
| Metalodèvite | Zn(UO2)2(AsO4)2 · 10H2O | Tet. 4/m : P42/m |
| Metanatroautunite | Na(UO2)(PO4)(H2O)3 | Tet. 4/mmm(4/m2/m2/m) : P4/ncc |
| Metanováčekite | Mg(UO2)2(AsO4)2 · 8H2O | Tet. 4/m : P4/n |
| Metarauchite | Ni(UO2)2(AsO4)2 · 8H2O | Tric. 1 : P1 |
| Metasaléeite | Mg(UO2)2(PO4)2 · 8H2O | |
| Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O | Tet. 4/m : P4/n |
| Metauranocircite | Ba(UO2)2(PO4)2 · 7H2O | Mon. 2 : P21 |
| Metauranospinite | Ca(UO2)2(AsO4)2 · 8H2O | Tet. 4/m : P42/n |
| Natrouranospinite | Na2(UO2)2(AsO4)2 · 5H2O | Tet. 4/mmm(4/m2/m2/m) : P4/nmm |
| Trögerite | (H3O)(UO2)(AsO4) · 3H2O | Tet. 4/mmm(4/m2/m2/m) : P4/nmm |
| Uramarsite | (NH4)(UO2)(AsO4) · 3H2O | Tet. 4/mmm(4/m2/m2/m) : P4/mmm |
| Uramphite | (NH4)2(UO2)2(PO4)2 · 6H2O | Tet. 4/mmm(4/m2/m2/m) : P4/nmm |
Common Associates
| 18 photos of Metazeunerite associated with Quartz | SiO2 |
| 9 photos of Metazeunerite associated with Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
| 8 photos of Metazeunerite associated with Olivenite | Cu2(AsO4)(OH) |
| 7 photos of Metazeunerite associated with Fluorite | CaF2 |
| 6 photos of Metazeunerite associated with 'Pitchblende' | UO2 |
| 6 photos of Metazeunerite associated with Baryte | BaSO4 |
| 5 photos of Metazeunerite associated with Metanováčekite | Mg(UO2)2(AsO4)2 · 8H2O |
| 4 photos of Metazeunerite associated with Schorl | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| 4 photos of Metazeunerite associated with Bariopharmacosiderite | Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
| 4 photos of Metazeunerite associated with Pharmacosiderite | KFe3+4(AsO4)3(OH)4 · 6-7H2O |
Related Minerals - Strunz-mindat Grouping
| 8.EB. | Meta-autunite Group | A1-2(UO2)2(TO4)2 · 5-10H2O |
| 8.EB.05 | Rauchite | Ni(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Uranocircite | Ba(UO2)2(PO4)2 · 10H2O |
| 8.EB.05 | Uranospinite | Ca(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
| 8.EB.05 | Metarauchite | Ni(UO2)2(AsO4)2 · 8H2O |
| 8.EB.05 | Heinrichite | Ba(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Kahlerite | Fe2+(UO2)2(AsO4)2 · 12H2O |
| 8.EB.05 | Hydronováčekite | Mg(UO2)2(AsO4)2 · 12H2O |
| 8.EB.05 | Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| 8.EB.05 | Nováčekite | Mg(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| 8.EB.05 | Saléeite | Mg(UO2)2(PO4)2 · 10H2O |
| 8.EB.05 | Xiangjiangite | (Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2O |
| 8.EB.10 | Bassetite | Fe2+(UO2)2(PO4)2 · 10H2O |
| 8.EB.10 | Lehnerite | Mn2+(UO2)2(PO4)2 · 8H2O |
| 8.EB.10 | Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O |
| 8.EB.10 | Metasaléeite | Mg(UO2)2(PO4)2 · 8H2O |
| 8.EB.10 | Metauranocircite | Ba(UO2)2(PO4)2 · 7H2O |
| 8.EB.10 | Metauranospinite | Ca(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metaheinrichite | Ba(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metakahlerite | Fe2+(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metakirchheimerite | Co(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metanováčekite | Mg(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metanatroautunite | Na(UO2)(PO4)(H2O)3 |
| 8.EB.10 | Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| 8.EB.10 | Przhevalskite | Pb2(UO2)3(PO4)2(OH)4 · 3H2O |
| 8.EB.10 | 'Pseudo-autunite' | (H3O)4Ca2(UO2)2(PO4)4 · 5H2O |
| 8.EB.15 | Abernathyite | K(UO2)(AsO4) · 3H2O |
| 8.EB.15 | Uramphite | (NH4)2(UO2)2(PO4)2 · 6H2O |
| 8.EB.15 | Meta-ankoleite | K2(UO2)2(PO4)2 · 6H2O |
| 8.EB.15 | Natrouranospinite | Na2(UO2)2(AsO4)2 · 5H2O |
| 8.EB.15 | Trögerite | (H3O)(UO2)(AsO4) · 3H2O |
| 8.EB.15 | Chernikovite | (H3O)2(UO2)2(PO4)2 · 6H2O |
| 8.EB.15 | Uramarsite | (NH4)(UO2)(AsO4) · 3H2O |
| 8.EB.20 | Chistyakovaite | Al(UO2)2(AsO4)2(F,OH) · 6.5H2O |
| 8.EB.20 | Threadgoldite | Al(UO2)2(PO4)2(OH) · 8H2O |
| 8.EB.25 | Uranospathite | (Al,◻)(UO2)2(PO4)2F · 20(H2O,F) |
| 8.EB.25 | Arsenuranospathite | Al(UO2)2(AsO4)2F · 20H2O |
| 8.EB.30 | Vochtenite | (Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2O |
| 8.EB.35 | Coconinoite | Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O |
| 8.EB.40 | Ranunculite | HAl(UO2)(PO4)(OH)3 · 4H2O |
| 8.EB.45 | Triangulite | Al3(UO2)4(PO4)4(OH)5 · 5H2O |
| 8.EB.50 | Furongite | Al13(UO2)7(PO4)13(OH)14 · 58H2O |
| 8.EB.55 | Arsenosabugalite | H0.5Al0.5(UO2)2(AsO4)2 · 8H2O |
| 8.EB.55 | Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
| 8.EB.60 | Horákite | (Bi7O7OH)[(UO2)4(PO4)2(AsO4)2(OH)2] · 3.5H2O |
Radioactivity
| Element | % Content | Activity (Bq/kg) | Radiation Type |
|---|---|---|---|
| Uranium (U) | 46.4192% | 11,604,800 | α, β, γ |
| Thorium (Th) | 0.0000% | 0 | α, β, γ |
| Potassium (K) | 0.0000% | 0 | β, γ |
For comparison:
- Banana: ~15 Bq per fruit
- Granite: 1,000–3,000 Bq/kg
- EU exemption limit: 10,000 Bq/kg
Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.
Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!
Activity: –
| Distance | Dose rate | Risk |
|---|---|---|
| 1 cm | ||
| 10 cm | ||
| 1 m |
The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μshield). 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
Internet Links for Metazeunerite
Please feel free to link to this page.
References for Metazeunerite
Localities for Metazeunerite
Showing 237 localities.
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.
Argentina | |
| Raúl Joreg Tauber Larry |
Australia | |
| Rankin et al. (2002) +1 other reference |
| Henry 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) |
| Poeverlein et al. (2010) |
| 58. +2 other references |
| Exel (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 reference |
| EDS-SEM analysis +1 other reference | |
| Samples analysed by Dr. Jochen Schlüter (Hamburg University) |
| samples analysed by Dr. Tony Kampf +2 other references | |
| Yang et al. (2011) | |
China | |
| Shen (n.d.) |
| Jeff Scovil |
Czech Republic | |
| Plášil |
| Plášil J. et al. (2008) | |
| Poirier et al. (2011) |
| Hloušek et al. (2002) +1 other reference | |
| Plášil et al. (2014) +1 other reference | |
| Pauliš 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. Geffroy |
| Y. Vessely collection |
| Favreau G. et al. (1996) |
| Wittern et al. (1997) |
| Wittern et al. (1997) |
| Hohl (1994) |
| Escande et al. (1973) +6 other references |
| Escande et al. (1973) +6 other references | |
| Meisser 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 reference |
| |
| Weiß (1990) |
| Gröbner et al. (2011) |
| Der Aufschluss 2000 (2) |
| Dreyer (1973) |
| Weiß (1990) |
| Dreyer et al. (1971) | |
| Aufschluss 69/ (7+8) +1 other reference |
| Noll (1984) |
| Wittern (2001) | |
| Wittern (2001) | |
| Weiß (1990) |
| Weiß (1990) |
| Desor (05/2020) |
| Gröbner et al. (2006) | |
| Hamann (2015) |
| https://www.mineralienatlas.de/?l=3390 | |
| Hajek (2010) |
| www.dergraul.de (2001) |
| Plášil et al. (2010) +1 other reference |
| Geochemist's and Mineralogist's Compendium (1937) +2 other references |
| Gröbner et al. (2005) |
| Gröbner et al. (2006) +1 other reference |
| Thorne (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) |
| Demartin et al. (2018) +2 other references |
| LIBVRNA N°2 September 2021 |
| Millosevich F. (1912) +2 other references |
| Domenico 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 collection | |
| Keller et al. (1986) |
Norway | |
| Husdal (2019) |
Poland | |
| Mochnacka et al. (2000) +2 other references |
| Macioch et al. (2018) |
| Kucha (2021) |
| Kucha (2021) |
Portugal | |
| Pavel M. Kartashov analytical data |
Russia | |
| Pekov I.V. et al. (2010) |
| ... |
| Зубрев И.Н |
| Nazarchuk et al. (2023) |
| Kasatkin et al. (2014) +1 other reference |
| Eremin et al. (2023) |
Slovakia | |
| Martin Števko-unpublished |
| Hoppanová 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.) | |
| Viñals et al. (2007) |
| Honrubia et al. (2002) | |
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 reference |
| S. Rust collection |
| Rocks & Min.: 60 (1) +2 other references | |
| Golley 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 references |
| Holland et al. (1958) +1 other reference |
| Galbraith (1959) |
| Galbraith (1959) | |
| Galbraith (1959) | |
| Galbraith (1959) |
| Leicht (1971) +1 other reference |
| Gornitz (2004) |
| Granger (1969) +1 other reference |
| Galbraith (1959) +1 other reference |
| Troxel et al. (1962) +2 other references |
| MacKevett et al. (1960) +2 other references | |
| Walker et al. (1956) +2 other references |
| Walker et al. (1956) +1 other reference |
| Walker et al. (1956) +2 other references | |
| Dunning et al. (2005) |
| Eckel et al. (1997) |
| Rocks & Minerals: Sept |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Gross (1965) +1 other reference | |
| Rocks & Min.:65:59. |
| Meschter (1953) +1 other reference |
| Castor et al. (2004) |
| Nevada Bureau of Mines and Geology NBMG ... +1 other reference |
| Palache et al. (1951) +2 other references |
| B. Wilkens collection. |
| Dunn (1995) +1 other reference |
| Smith and Hoff (1984) |
| Smith and Hioff (1984) |
| Eric Quinter collection | |
| Geyer |
| Roberts et al. (1965) |
| Roberts et al. (1965) |
| Roberts et al. (1965) | |
| Tom Wyman collection |
| Collected by and in the collection of +1 other reference | |
| Bullock (1981) |
| Bullock (1981) |
| Bullock (1981) |
| Bullock (1981) | |
| Bullock (1981) | |
| Bullock (1981) | |
| Page et al. (1956) +2 other references | |
| Thomspon et al. (1956) +1 other reference | |
| Bullock (1981) | |
| Palache et al. (1951) |
| Bullock (1981) |
| Page et al. (1956) +2 other references |
| Bullock (1981) | |
| Bullock (1981) | |
| Bullock (1981) | |
| King et al. (1995) |
| collected by and in the collection of ... |
| Page et al. (1956) +1 other reference | |
| Bullock (1981) | |
| USGS TEI #514 +2 other references |
| Trites et al. (1958) +1 other reference | |
| Kokinos et al. (1993) |
| Kokinos et al. (1993) | |
| Bullock (1981) |
| Page et al. (1956) +2 other references |
| Hausel et al. (2001) | |
Uzbekistan | |
| Pekov (1998) +1 other reference |








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The
Pret Basso Quarry, Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy