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Pseudo-autunite

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Formula:
(H3O)4Ca2(UO2)2(PO4)4 · 5H2O
Colour:
pale yellow, white
Hardness:
2 - 3
Crystal System:
Orthorhombic
Fleischer noted that there is no evidence that alkalis or ammonium were looked for, and the hydronium formulation is therefore not proved.

Originally reported from North Karelia, Murmanskaja Oblast', Northern Region, Russia.


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Classification of Pseudo-autuniteHide

Discredited
7/E.02-180

7 : Phosphates, Arsenates, Vanadates
E : Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-
02 : Meta-autunite group
40.2a.1.3

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
19.11.16

19 : Phosphates
11 : Phosphates of U

Physical Properties of Pseudo-autuniteHide

Colour:
pale yellow, white
Streak:
white
Hardness:
2 - 3 on Mohs scale
Cleavage:
Perfect

Optical Data of Pseudo-autuniteHide

Type:
Biaxial (-)
RI values:
nα = 1.541 nβ = 1.568 nγ = 1.570
2V:
Measured: 32° , Calculated: 30°
Max Birefringence:
δ = 0.029
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v strong

Chemical Properties of Pseudo-autuniteHide

Formula:
(H3O)4Ca2(UO2)2(PO4)4 · 5H2O

Crystallography of Pseudo-autuniteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 6.94 Å, b = 6.94 Å, c = 12.85 Å
Ratio:
a:b:c = 1 : 1 : 1.852
Unit Cell V:
618.90 ų (Calculated from Unit Cell)

Related Minerals - Nickel-Strunz Grouping (8th Edition)Hide

7/E.02-10MetanováčekiteMg(UO2)2(AsO4)2 · 8H2OTet. 4/m : P4/n
7/E.02-20BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
7/E.02-30MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
7/E.02-40LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon.
7/E.02-50MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
7/E.02-60MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
7/E.02-70MetazeuneriteCu(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
7/E.02-80MetalodèviteZn(UO2)2(AsO4)2 · 10H2OTet.
7/E.02-90Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2OTet. 4/mmm (4/m 2/m 2/m)
7/E.02-100MetauranospiniteCa(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
7/E.02-110Metauranocircite-IBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
7/E.02-120MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2OTet. 4mm
7/E.02-130Natrouranospinite(Na2,Ca)(UO2)2(AsO4)2 · 5H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
7/E.02-140Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
7/E.02-150AbernathyiteK(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/ncc
7/E.02-160Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet.
7/E.02-165Uramarsite(NH4,H3O)2(UO2)2(AsO4,PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mmm
7/E.02-170Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet.
7/E.02-190UlrichiteCaCu(UO2)(PO4)2 · 4H2OMon.

Related Minerals - Dana Grouping (8th Ed.)Hide

40.2a.1.1AutuniteCa(UO2)2(PO4)2 · 11H2OOrth. mmm (2/m 2/m 2/m) : Pnma
40.2a.1.2Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2OTet. 4/mmm (4/m 2/m 2/m)

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.11.1LermontoviteU(PO4)(OH) · H2OOrth. mmm (2/m 2/m 2/m) : Ccca
19.11.2MetavanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Fddd
19.11.3VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2OOrth.
19.11.4Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet.
19.11.5VyacheslaviteU(PO4)(OH) · nH2OOrth.
19.11.6MetanatroautuniteNa(UO2)(PO4)(H2O)3Tet. 4/mmm (4/m 2/m 2/m) : P4/ncc
19.11.7YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
19.11.8Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
19.11.9Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet.
19.11.10TorberniteCu(UO2)2(PO4)2 · 12H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
19.11.11MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
19.11.12SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m : P21/b
19.11.13NingyoiteCaU(PO4)2 · 1-2H2OOrth.
19.11.14Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2OTet. 4/mmm (4/m 2/m 2/m)
19.11.15AutuniteCa(UO2)2(PO4)2 · 11H2OOrth. mmm (2/m 2/m 2/m) : Pnma
19.11.17PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2OOrth.
19.11.18Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
19.11.19UlrichiteCaCu(UO2)(PO4)2 · 4H2OMon.
19.11.20BergeniteCa2Ba4(UO2)9(PO4)6O6 · 16H2OMon. 2/m : P21/b
19.11.21Metauranocircite-IBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
19.11.22UranocirciteBa(UO2)2(PO4)2 · 10H2OTet.
19.11.23RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2OMon.
19.11.24TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2OTric.
19.11.25MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2OOrth.
19.11.26UpaliteAl(UO2)3(PO4)2O(OH) · 7H2OMon.
19.11.27FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2OTric. 1 : P1
19.11.28ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.
19.11.29PhuralumiteAl2(UO2)3(PO4)3(OH)2 · 13H2OMon.
19.11.30MoreauiteAl3(UO2)(PO4)3(OH)2 · 13H2O
19.11.31SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
19.11.32Uranospathite(Al,☐)(UO2)2(PO4)2F · 20(H2O,F)Orth. mm2 : Pnn2
19.11.33AlthupiteAlTh(UO2)7(PO4)4(OH)5O2 · 15H2OTric. 1 : P1
19.11.34Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2OMon.
19.11.35Kivuite(Th,Ca,Pb)(UO2)4(HPO4)2(OH)8 · 7H2O
19.11.36ParsonsitePb2(UO2)(PO4)2Tric. 1 : P1
19.11.37DewindtiteH2Pb3(UO2)2(PO4)4O4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmma
19.11.38DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2OMon. 2/m : P21/m
19.11.39PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2OOrth.
19.11.40LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon.
19.11.41BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
19.11.42Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2OMon.

Other InformationHide

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 Pseudo-autuniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1965): 50: 1505.
Mineralogiya I Geokhimiya (Mineralogy and Geochemistry), Leningrad University, Sbornik statey: 1: 31-39.

Internet Links for Pseudo-autuniteHide

Localities for Pseudo-autuniteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Northern Karelia
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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