Uranospinite
About Uranospinite
May dehydrate to metauranospinite. Possible hydronium analogue is UM1997-19-AsO:HU.
A secondary mineral occurring in the oxidized zone of arsenic-bearing and uranium-bearing hydrothermal deposits.
Unique Identifiers
Classification of Uranospinite
IMA Classification of Uranospinite
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 |
|---|---|---|
| Usp | 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 Uranospinite
On {001}, perfect; on {100}, distinct.
Optical Data of Uranospinite
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.
Chemistry of Uranospinite
Crystallography of Uranospinite
Epitaxial Relationships of Uranospinite
| 'Zeunerite' | Cu(UO2)2(AsO4)2 · 12H2O |
X-Ray Powder Diffraction
| d-spacing | Intensity |
|---|---|
| 10.16 Å | (100) |
| 5.13 Å | (70) |
| 4.90 Å | (60) |
| 3.56 Å | (90) |
| 3.39 Å | (80) |
| 2.52 Å | (50b) |
| 1.90 Å | (60) |
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 Uranospinite
Synonyms of Uranospinite
Other Language Names for Uranospinite
Relationship of Uranospinite to other Species
| Autunite | Ca(UO2)2(PO4)2 · 10-12H2O | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Bassetite | Fe2+(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
| Heinrichite | Ba(UO2)2(AsO4)2 · 10H2O | Mon. 2/m : P2/b |
| Hydronováčekite | Mg(UO2)2(AsO4)2 · 12H2O | Tric. 1 : P1 |
| Kahlerite | Fe(UO2)2(AsO4)2 · 12H2O | Tet. 4/m : P42/n |
| Nováčekite | Mg(UO2)2(AsO4)2 · 10H2O | Mon. 2/m |
| Rauchite | Ni(UO2)2(AsO4)2 · 10H2O | Tric. 1 : P1 |
| Sabugalite | HAl(UO2)4(PO4)4 · 16H2O | Mon. 2/m : B2/m |
| Saléeite | Mg(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
| Torbernite | Cu(UO2)2(PO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
| Uranocircite | Ba(UO2)2(PO4)2 · 10H2O | Tet. |
| Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
Common Associates
| 15 photos of Uranospinite associated with Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
| 4 photos of Uranospinite associated with Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| 4 photos of Uranospinite associated with Metauranospinite | Ca(UO2)2(AsO4)2 · 8H2O |
| 4 photos of Uranospinite associated with Fluorite | CaF2 |
| 3 photos of Uranospinite associated with Chamosite | Fe2+5Al(AlSi3O10)(OH)8 |
| 2 photos of Uranospinite associated with 'Gummite' | |
| 2 photos of Uranospinite associated with Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| 2 photos of Uranospinite associated with Albite | Na(AlSi3O8) |
| 2 photos of Uranospinite associated with Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| 2 photos of Uranospinite associated with Gypsum | CaSO4 · 2H2O |
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 | 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 | Fe(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 | Metazeunerite | Cu(UO2)2(AsO4)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) | 45.8575% | 11,464,375 | 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 Uranospinite
Other Information
Internet Links for Uranospinite
Please feel free to link to this page.
References for Uranospinite
Localities for Uranospinite
Showing 72 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 | |
| Las Especies Minerales de La Republica ... |
| Encyclopedia of Minerals |
Australia | |
| South Australian Museum collections / ... +3 other references |
| SA Geodata Database - Mineral Deposit ... |
Austria | |
| Paar et al. (1978) |
| Strasser (1989) |
China | |
| Shaohua Shi et al. (2011) |
Czech Republic | |
| Pauliš P. et al. (Kutna Hora, issue 1) +1 other reference |
| - (Pavel Škácha coll.) | |
| Hloušek et al. (2002) |
| Pauliš P. et al. (Kutna Hora, issue 1) |
| Petr Pauliš | |
| Sejkora (1994) |
Europe | |
| Paulis et al. (2003) |
France | |
| Queneau (n.d.) |
| Frédéric Bonnet Collection |
| Dal Bo et al. (2018) |
| - (1998) |
Germany | |
| |
| |
| Walenta (1992) | |
| |
| Walenta (1992) | |
| Walenta (1992) |
| Walenta (1992) |
| Möhn et al. (11/2020) |
| Weiß (1990) |
| Walenta (1992) |
| Walenta (1992) | |
| |
| N. Jb. Miner. Abh. 115 (1971) |
| Aufschluss 69/ (7+8) +1 other reference |
| Weiß (1990) |
| Möhn et al. (07/2020) |
| A. Weisbach (1873) +1 other reference |
Greece | |
| Branko Rieck collection (EDS and SXRD analyses) +3 other references |
Iran | |
| Bariand et al. (1993) |
Italy | |
| Piccoli (2002) +1 other reference |
| Marello et al. (2013) | |
| Piccoli et al. (2007) |
Kazakhstan | |
| Sidorenko et al. (2007) |
Morocco | |
| ONA |
| Favreau et al. (2006) | |
| Favreau et al. (2006) | |
Poland | |
| Mochnacka et al. (2000) +1 other reference |
| Siuda R. et al. (2008) +1 other reference |
| Łukasz Kruszewski (pers. comm., to be updated) +4 other references | |
| Kucha (2021) |
| Kucha (2021) |
Russia | |
| Alekseev (2025) |
| Pavel M. Kartashov (n.d.) |
South Africa | |
| Cairncross et al. (1995) |
Switzerland | |
| Stalder et al. (1998) |
Tajikistan | |
| Chernikov et al. (1997) |
UK | |
| Golley et al. (1995) |
| Day (1999) |
USA | |
| Scarborough (1981) |
| Anthony et al. (1995) +1 other reference |
| Page et al. (1956) +2 other references |
| Eckel et al. (1997) |
| Carlson et al. (2007) |
| NBMG Bull 70 Geology and Mineral ... |
| Castor et al. (2004) +1 other reference | |
| Morrill +1 other reference |
| Dunn (1995) +1 other reference |
| Lalith Aditya Senthil Kumar Collection |
| Nevada Bureau of Mines and Geology NBMG ... |
| DANA R. KELLEY AND PAUL F. KERR (1958) |
| Bullock (1981) |
| Palache et al. (1951) +1 other reference |
| Hausel et al. (2001) |
Uzbekistan | |
| Pekov (1998) +1 other reference |





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The
Bricco Volti - Monte Ortieul quarrying area, Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy