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Arsenuranospathite

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Formula:
Al[(UO2)(AsO4)]2F(H2O)20
System:
Orthorhombic
Colour:
Pale yellow
Hardness:
2
Name:
Named in allusion to its composition as the ARSENate analog of uranospathite.
Isostructural with:
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.

Classification of Arsenuranospathite

Approved, 'Grandfathered' (first described prior to 1959)
8.EB.25

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+
20.7.14

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

Physical Properties of Arsenuranospathite

Colour:
Pale yellow
Hardness (Mohs):
2

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 Volume:
V 1533.9 ų
Z:
2
X-Ray Powder Diffraction Data:
d-spacingIntensity
14.62 (100)
7.62 (100)
3.49 (90)
5.03 (80)
3.59 (50)
3.24 (40)
2.25 (30)
Comments:
Menzenschwand material

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.
Surface Relief:
Low

Chemical Properties of Arsenuranospathite

Formula:
Al[(UO2)(AsO4)]2F(H2O)20
All elements listed in formula:
Analytical Data:
Rabejac material; empirical formula basis: 2 (As + P + Si + S) cations pfu
Empirical Formula:
(Al1.02Cu0.01)[(U0.98O2)(As0.89P0.08Si0.02S0.01)O4]2(F0.77OH0.05)(H2O)20.18
Common Impurities:
P

Relationship of Arsenuranospathite to other Species

8.EB.05AutuniteCa(UO2)2(PO4)2 · 11H2O
8.EB.05HeinrichiteBa(UO2)2(AsO4)2 · 10H2O
8.EB.05KahleriteFe(UO2)2(AsO4)2 · 12H2O
8.EB.05Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
8.EB.05SaléeiteMg(UO2)2(PO4)2 · 10H2O
8.EB.05TorberniteCu(UO2)2(PO4)2 · 12H2O
8.EB.05UranocirciteBa(UO2)2(PO4)2 · 10H2O
8.EB.05UranospiniteCa(UO2)(AsO4)2 · 10H2O
8.EB.05Xiangjiangite(Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2O
8.EB.05ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
8.EB.05MetarauchiteNi(UO2)2(AsO4)2 · 8H2O
8.EB.05RauchiteNi(UO2)2(AsO4)2 · 10H2O
8.EB.10BassetiteFe2+(UO2)2(PO4)2 · 10H2O
8.EB.10LehneriteMn2+(UO2)2(PO4)2 · 8H2O
8.EB.10Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
8.EB.10MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
8.EB.10Metauranocircite-IBa(UO2)2(PO4)2 · 7H2O
8.EB.10MetauranospiniteCa(UO2)2(AsO4)2 · 8H2O
8.EB.10MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2O
8.EB.10MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2O
8.EB.10MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2O
8.EB.10MetanováčekiteMg(UO2)2(AsO4)2 · 8H2O
8.EB.10MetatorberniteCu(UO2)2(PO4)2 · 8H2O
8.EB.10MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
8.EB.10PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2O
8.EB.10Meta-lodèvite
8.EB.15AbernathyiteK(UO2)(AsO4) · 3H2O
8.EB.15Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2O
8.EB.15Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2O
8.EB.15Natrouranospinite(Na2,Ca)(UO2)2(AsO4)2 · 5H2O
8.EB.15Trögerite(H3O)(UO2)(AsO4) · 3H2O
8.EB.15Uramphite(NH4)2(UO2)2(PO4)2 · 6H2O
8.EB.15Uramarsite(NH4,H3O)2(UO2)2(AsO4,PO4)2 · 6H2O
8.EB.20ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2O
8.EB.20ChistyakovaiteAl(UO2)2(AsO4)2(F,OH) · 6.5H2O
8.EB.25Uranospathite(Al,☐)(UO2)2(PO4)2F · 20(H2O,F)
8.EB.30Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2O
8.EB.35CoconinoiteFe23+Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O
8.EB.40RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2O
8.EB.45TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2O
8.EB.50FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2O
8.EB.55SabugaliteHAl(UO2)4(PO4)4 · 16H2O
20.7.1Trögerite(H3O)(UO2)(AsO4) · 3H2O
20.7.2Natrouranospinite(Na2,Ca)(UO2)2(AsO4)2 · 5H2O
20.7.3AbernathyiteK(UO2)(AsO4) · 3H2O
20.7.4MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
20.7.5ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
20.7.6MetanováčekiteMg(UO2)2(AsO4)2 · 8H2O
20.7.7Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
20.7.8ArsenuranyliteCa(UO2)4(AsO4)2(OH)4 · 6H2O
20.7.9MetauranospiniteCa(UO2)2(AsO4)2 · 8H2O
20.7.10UranospiniteCa(UO2)(AsO4)2 · 10H2O
20.7.11MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2O
20.7.12HeinrichiteBa(UO2)2(AsO4)2 · 10H2O
20.7.13MetalodèviteZn(UO2)2(AsO4)2 · 10H2O
20.7.15HallimonditePb2(UO2)(AsO4)2 · nH2O, 0 ≤ n ≤ 0.5
20.7.16HügelitePb2(UO2)3(AsO4)2O2 · 5H2O
20.7.17AsselbornitePb(BiO)3(UO2)4(AsO4)2(OH)7·4H2O
20.7.18MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2O
20.7.19KahleriteFe(UO2)2(AsO4)2 · 12H2O
20.7.20MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2O

Other Names for Arsenuranospathite

Name in Other Languages:

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.

References for Arsenuranospathite

Reference List:
Walenta, K. (1978): Uranospathite and arsenuranospathite. Min. Mag.: 42: 117-128.
American Mineralogist: 64: 465.

Dal Bo, F., Hatert, F., Baijot, M., & Philippo, S. (2015). Crystal structure of arsenuranospathite from Rabejac, Lodève, France. European Journal of Mineralogy: 27(4): 589-597.

Anthony, J.W., Bideaux, R.A., Bladh, K.W. and Nichols, M.C., Eds. Handbook of Mineralogy, Mineralogical Society of America, Chantilly, VA 20151-1110, USA. http://www.handbookofmineralogy.org/ (2016)

Internet Links for Arsenuranospathite

Localities for Arsenuranospathite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
Lapis 2002(7/8), 63-65
France
 
  • Languedoc-Roussillon
    • Hérault
      • Lodève
[Le Règne Minéral 1997, 13, p.5-18]; Bariand, P., Bachet, B., Brassy, C., Medenbach, O., Deliens, M., Vautier, R., & Piret, P. (1993) A New Uranium Mineral from the Talmessi Mine, Iran, and Rabejac, France. Mineralogical Record: 24: 463-467; Dal Bo, F., Hatert, F., Baijot, M., & Philippo, S. (2015). Crystal structure of arsenuranospathite from Rabejac, Lodève, France. European Journal of Mineralogy, 27(4), 589-597.
  • Limousin
    • Haute-Vienne
      • Razès
Le Règne Minéral, Hors Série IV, 1998
      • Saint-Sylvestre
Le Règne Minéral, Hors Série IV, 1998
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Haslach
        • Schnellingen
Blaß, G. & Graf, H.W. (2000): Neufunde von bekannten Fundorten im Schwarzwald. Mineralien-Welt, 11 (4), 57-60.
      • Menzenschwand
Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
      • Schenkenzell
        • Wittichen
          • Böckelsbach valley
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992; Mineralogical Magazine(1978) 42, 117-128
          • Burgfelsen
No reference listed
          • Heubach Valley
No reference listed
      • St Ulrich
Lapis 21(12), 43 (1996)
  • Rhineland-Palatinate
    • Hunsrück
      • Birkenfeld
        • Ellweiler
Aufschluss 69/(7+8), Lapis 79/(7+8)
Kazakhstan
 
  • Almaty Province (Almaty Oblysy; Almati Oblast')
    • Lake Alakol (Lake Aaköl)
P.M. Kartashov data
Switzerland
 
  • Wallis (Valais)
    • Le Trient Valley
      • Les Marécottes
Mineral and/or Locality  
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