Arsenuranospathite
A valid IMA mineral species - grandfathered
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About Arsenuranospathite
Formula:
Al(UO2)2(AsO4)2F · 20H2O
Colour:
Pale yellow
Hardness:
2
Crystal System:
Orthorhombic
Name:
Named in allusion to its composition as the ARSENate analog of uranospathite.
Type Locality:
Isostructural with:
Partially dehydrates readily in air (Walenta, 1978) to form Unnamed (Partially dehydrated Arsenuranospathite), which contains only 10 water molecules per formula unit.
Chemically related to chistyakovaite.
Crystal structure details:
- corner-sharing UO6 square bipyramids
- (As,P)O4 tetrahedra
- the above form autunite-type [(UO2)((As,P)O4)] sheet
- Al(H2O)6 octahedra are in the interlayer space
- 8 isolated water molecules in the interlayer
- hydrogen bonds link together the water molecules, Al octahedra and UAs-bearing sheets, forming a very complex bonding net
- F likely replaces some of the water molecules of the Al-bearing octahedra.
Chemically related to chistyakovaite.
Crystal structure details:
- corner-sharing UO6 square bipyramids
- (As,P)O4 tetrahedra
- the above form autunite-type [(UO2)((As,P)O4)] sheet
- Al(H2O)6 octahedra are in the interlayer space
- 8 isolated water molecules in the interlayer
- hydrogen bonds link together the water molecules, Al octahedra and UAs-bearing sheets, forming a very complex bonding net
- F likely replaces some of the water molecules of the Al-bearing octahedra.
Unique Identifiers
Mindat ID:
373
Long-form identifier:
mindat:1:1:373:9
GUID
(UUID V4):
(UUID V4):
b89ad138-c648-414b-890b-38db6ae519ab
IMA Classification of Arsenuranospathite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Arsenuranospathite
8.EB.25
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
40.2a.23.1
40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
20.7.14
20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U
20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Aush | 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 Arsenuranospathite
Colour:
Pale yellow
Hardness:
2 on Mohs scale
Optical Data of Arsenuranospathite
Type:
Uniaxial (-)
RI values:
nω = 1.542 nε = 1.538
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Chemistry of Arsenuranospathite
Mindat Formula:
Al(UO2)2(AsO4)2F · 20H2O
Common Impurities:
P
Crystallography of Arsenuranospathite
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pnn2
Cell Parameters:
a = 29.9262(7) Å, b = 7.1323(1) Å, c = 7.1864(1) Å
Ratio:
a:b:c = 4.196 : 1 : 1.008
Unit Cell V:
1533.9 ų
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 14.62 Å | (100) |
| 7.62 Å | (100) |
| 3.49 Å | (90) |
| 5.03 Å | (80) |
| 3.59 Å | (50) |
| 3.24 Å | (40) |
| 2.25 Å | (30) |
Comments:
Menzenschwand material
Geological Environment
Paragenetic Mode(s):
| 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] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Arsenuranospathite
Other Language Names for Arsenuranospathite
German:Arsenuranospathit
Spanish:Arsenuranospathita
Common Associates
Associated Minerals Based on Photo Data:
| 8 photos of Arsenuranospathite associated with Wulfenite | Pb(MoO4) |
| 4 photos of Arsenuranospathite associated with Schoepite | (UO2)8O2(OH)12 · 12H2O |
| 2 photos of Arsenuranospathite associated with Umohoite | (UO2)MoO4 · 2H2O |
| 2 photos of Arsenuranospathite associated with Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O |
| 2 photos of Arsenuranospathite associated with Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
| 1 photo of Arsenuranospathite associated with Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| 1 photo of Arsenuranospathite associated with Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| 1 photo of Arsenuranospathite associated with Ianthinite | U4+(UO2)5O7 · 10H2O |
| 1 photo of Arsenuranospathite associated with Studtite | [(UO2)(O2)(H2O)2] · H2O |
Related Minerals - Strunz-mindat Grouping
| 8.EB. | Meta-autunite Group | A1-2(UO2)2(TO4)2 · 5-10H2O |
| 8.EB.05 | Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| 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 | Saléeite | Mg(UO2)2(PO4)2 · 10H2O |
| 8.EB.05 | Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| 8.EB.05 | Uranocircite | Ba(UO2)2(PO4)2 · 10H2O |
| 8.EB.05 | Uranospinite | Ca(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Xiangjiangite | (Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2O |
| 8.EB.05 | Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
| 8.EB.05 | Metarauchite | Ni(UO2)2(AsO4)2 · 8H2O |
| 8.EB.05 | Nováčekite | Mg(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Rauchite | Ni(UO2)2(AsO4)2 · 10H2O |
| 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 | 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.10 | Metanatroautunite | Na(UO2)(PO4)(H2O)3 |
| 8.EB.15 | Abernathyite | K(UO2)(AsO4) · 3H2O |
| 8.EB.15 | Chernikovite | (H3O)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 | Uramphite | (NH4)2(UO2)2(PO4)2 · 6H2O |
| 8.EB.15 | Uramarsite | (NH4)(UO2)(AsO4) · 3H2O |
| 8.EB.20 | Threadgoldite | Al(UO2)2(PO4)2(OH) · 8H2O |
| 8.EB.20 | Chistyakovaite | Al(UO2)2(AsO4)2(F,OH) · 6.5H2O |
| 8.EB.25 | Uranospathite | (Al,◻)(UO2)2(PO4)2F · 20(H2O,F) |
| 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 | Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
| 8.EB.60 | Horákite | (Bi7O7OH)[(UO2)4(PO4)2(AsO4)2(OH)2] · 3.5H2O |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Arsenuranospathite
mindat.org URL:
https://www.mindat.org/min-373.html
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Please feel free to link to this page.
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References for Arsenuranospathite
Reference List:
Walenta, Kurt (1978) Uranospathite and arsenuranospathite. Mineralogical Magazine, 42 (321) 117-128 doi:10.1180/minmag.1978.042.321.18
Chukanov, N. V., Möckel, S., Sidorenko, G. A., Zaitsev, V. A. (2009) Arsenuranospathite, Al(UO2)2(AsO4)2F·20H2O: Formula revision and relationships with allied uranyl arsenates and phosphates. Neues Jahrbuch für Mineralogie - Abhandlungen, 185 (3) 305-312 doi:10.1127/0077-7757/2009/0129
Dal Bo, Fabrice, Hatert, Frédéric, Baijot, Maxime, Philippo, Simon (2015) Crystal structure of arsenuranospathite from Rabejac, Lodève, France. European Journal of Mineralogy, 27 (4) 589-597 doi:10.1127/ejm/2015/0027-2461
Anthony, John W., Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. - Eds. (2016) Handbook of Mineralogy. https://www.handbookofmineralogy.org/
Theye, Thomas, Walenta, Kurt, Markl, Gregor (2016) The chemical composition of uranospathite, arsenuranospathite, and associated minerals revisited: the peculiarity of fluorine incorporation in autunite group minerals. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geoche, 193 (1) 59-68 doi:10.1127/njma/2015/0292
Localities for Arsenuranospathite
symbol to view information about a locality.
The 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.
Czech Republic | |
| Lapis 2002 (7/8) |
France | |
| Boisson J.-M. et al. (2023) +1 other reference |
| - (1998) |
| - (1998) |
| Bariand et al. (1993) +3 other references |
Germany | |
| Lapis 21 (12) |
| Blaß et al. (2000) |
| Unnamed (Partially dehydrated Arsenuranospathite) |
| Walenta (1978) +1 other reference |
| |
| |
| Walenta (1992) |
| Aufschluss 69/ (7+8) +1 other reference |
| Desor (05/2020) |
Italy | |
| Marello et al. (2018) |
| Marello et al. (2018) | |
Kazakhstan | |
| Pavel.M. Kartashov (n.d.) |
Switzerland | |
| |
USA | |
| Kampf et al. (2018) |
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Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany