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Metanatroautunite

A valid IMA mineral species - grandfathered
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04143040014949775473689.jpg
Metanatroautunite

Lake Boga granite quarry, Lake Boga, Swan Hill Rural City, Victoria, Australia
07819900014947636635551.jpg
Metanatroautunite

Kuruk U Deposit, Khodzhent, Sughd, Tajikistan
07986380017058586207200.jpg
Metanatroautunite

Emmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
07371200014947760162661.jpg
Metanatroautunite

Lake Boga granite quarry, Lake Boga, Swan Hill Rural City, Victoria, Australia
05604850014949775477715.jpg
Metanatroautunite

Kuruk U Deposit, Khodzhent, Sughd, Tajikistan
03891790017056387223130.jpg
Metanatroautunite

Emmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
04143040014949775473689.jpg
Metanatroautunite

Lake Boga granite quarry, Lake Boga, Swan Hill Rural City, Victoria, Australia
07819900014947636635551.jpg
Metanatroautunite

Kuruk U Deposit, Khodzhent, Sughd, Tajikistan
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About MetanatroautuniteHide

Formula:
Na(UO2)(PO4)(H2O)3
Colour:
Lemon-yellow
Lustre:
Sub-Vitreous, Waxy, Pearly
Hardness:
2 - 2½
Specific Gravity:
3.62 (Calculated)
Crystal System:
Tetragonal
Name:
Named 1957 by A. A. Chernikov, O. V. Krutetskaya, and N. I. Organova for it being a sodium-rich member of the autunite group. Originally published as "sodium autunite", but changed in the same year by the authors to "natroautunite". Renamed "meta-natroautunite" in 1994 by A. A. Chernikov and N. I. Organova for the dehydrated relationship of the described mineral.
Meta-autunite Group.


Unique IdentifiersHide

Mindat ID:
3705
Long-form identifier:
mindat:1:1:3705:7
GUID
(UUID V4):
d10e376c-1221-4a50-af35-3536b26ae392

IMA Classification of MetanatroautuniteHide

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Na(UO2)(PO4) · 3H2O

Classification of MetanatroautuniteHide

Strunz-mindat (2024):
8.EB.10

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
Dana 8th ed.:
40.2a.5.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
Hey's CIM Ref.:
19.11.6

19 : Phosphates
11 : Phosphates of U

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
MnautIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of MetanatroautuniteHide

Lustre:
Sub-Vitreous, Waxy, Pearly
Transparency:
Transparent, Translucent
Colour:
Lemon-yellow
Streak:
White
Hardness:
2 - 2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{001}
Fracture:
Micaceous
Density:
3.62 g/cm3 (Calculated)

Optical Data of MetanatroautuniteHide

Type:
Uniaxial (-)
RI values:
nω = 1.578 nε = 1.559
Birefringence:
0.019
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Pleochroism:
Visible
Comments:
O = light yellow, E = pale yellow

Chemistry of MetanatroautuniteHide

Mindat Formula:
Na(UO2)(PO4)(H2O)3
Elements listed:
H, Na, O, P, U - search for minerals with similar chemistry

Crystallography of MetanatroautuniteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/ncc
Cell Parameters:
a = 6.9935(7) Å, c = 17.5101(12) Å
Ratio:
a:c = 1 : 2.504
Unit Cell V:
856.4 ų
Z:
4
Comment:
Mills et al. (2012)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0018862MetanatroautuniteMills S J, Kampf A R, Birch W D (2012) The crystal structure of metanatroautunite, Na[(UO2)(PO4)](H2O)3, from the Lake Boga Granite, Victoria, Australia American Mineralogist 97 735-7382012Lake Boga Granite, Victoria, Australia0293
0005944MetanatroautuniteLocock A J, Burns P C, Duke M J M, Flynn T M (2004) Monovalent cations in structures of the meta-autunite group The Canadian Mineralogist 42 973-99620040293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.67 Å(100)
3.23 Å(70)
2.675 Å(80)
1.639 Å(70)
1.566 Å(80b)
1.540 Å(80b)
1.367 Å(70)
Comments:
Natural material

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]
47f : [Uranyl (U⁶⁺) minerals]

Synonyms of MetanatroautuniteHide

Other Language Names for MetanatroautuniteHide

Relationship of Metanatroautunite to other SpeciesHide

Member of:
Meta-autunite Group
Other Members of this group:
AbernathyiteK(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/ncc
Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon. 2/m
Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
Meta-autuniteCa(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m)
MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2OMon. 2 : P21
MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
MetalodèviteZn(UO2)2(AsO4)2 · 10H2OTet. 4/m : P42/m
MetanováčekiteMg(UO2)2(AsO4)2 · 8H2OTet. 4/m : P4/n
MetarauchiteNi(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
MetauranocirciteBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
MetauranospiniteCa(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
MetazeuneriteCu(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
Trögerite(H3O)(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
Uramarsite(NH4)(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mmm
Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/ncc

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Metanatroautunite associated with MuscoviteKAl2(AlSi3O10)(OH)2
1 photo of Metanatroautunite associated with AlbiteNa(AlSi3O8)
1 photo of Metanatroautunite associated with WodginiteMn2+Sn4+Ta2O8
1 photo of Metanatroautunite associated with Tantalowodginite(Mn2+0.5◻0.5)TaTa2O8
1 photo of Metanatroautunite associated with AutuniteCa(UO2)2(PO4)2 · 10-12H2O

Related Minerals - Strunz-mindat GroupingHide

8.EB.Meta-autunite GroupA1-2(UO2)2(TO4)2 · 5-10H2O
8.EB.05AutuniteCa(UO2)2(PO4)2 · 10-12H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.EB.05HeinrichiteBa(UO2)2(AsO4)2 · 10H2OMon. 2/m : P2/b
8.EB.05KahleriteFe(UO2)2(AsO4)2 · 12H2OTet. 4/m : P42/n
8.EB.05HydronováčekiteMg(UO2)2(AsO4)2 · 12H2OTric. 1 : P1
8.EB.05SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m
8.EB.05TorberniteCu(UO2)2(PO4)2 · 12H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.EB.05UranocirciteBa(UO2)2(PO4)2 · 10H2OTet.
8.EB.05UranospiniteCa(UO2)2(AsO4)2 · 10H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.05Xiangjiangite(Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2OTet.
8.EB.05ZeuneriteCu(UO2)2(AsO4)2 · 12H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.EB.05MetarauchiteNi(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.05NováčekiteMg(UO2)2(AsO4)2 · 10H2OMon. 2/m
8.EB.05RauchiteNi(UO2)2(AsO4)2 · 10H2OTric. 1 : P1
8.EB.10BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
8.EB.10LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon. 2/m
8.EB.10Meta-autuniteCa(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m)
8.EB.10MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
8.EB.10MetauranocirciteBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
8.EB.10MetauranospiniteCa(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
8.EB.10MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2OMon. 2 : P21
8.EB.10MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.10MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.10MetanováčekiteMg(UO2)2(AsO4)2 · 8H2OTet. 4/m : P4/n
8.EB.10MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
8.EB.10MetazeuneriteCu(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
8.EB.10PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2OTet.
8.EB.10Pseudo-autunite(H3O)4Ca2(UO2)2(PO4)4 · 5H2OOrth.
8.EB.15AbernathyiteK(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/ncc
8.EB.15Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.15Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.15NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.15Trögerite(H3O)(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.15Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/ncc
8.EB.15Uramarsite(NH4)(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mmm
8.EB.20ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.
8.EB.20ChistyakovaiteAl(UO2)2(AsO4)2(F,OH) · 6.5H2OMon.
8.EB.25ArsenuranospathiteAl(UO2)2(AsO4)2F · 20H2OOrth. mm2 : Pnn2
8.EB.25Uranospathite(Al,◻)(UO2)2(PO4)2F · 20(H2O,F)Orth. mm2 : Pnn2
8.EB.30Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2OMon.
8.EB.35CoconinoiteFe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2OMon.
8.EB.40RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2OMon.
8.EB.45TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2OTric.
8.EB.50FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2OTric. 1 : P1
8.EB.55SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
8.EB.60Horákite(Bi7O7OH)[(UO2)4(PO4)2(AsO4)2(OH)2] · 3.5H2OMon. 2/m : B2/b

Fluorescence of MetanatroautuniteHide

In UV light:
Fluoresces yellow green in SW and LW UV

Other InformationHide

Health Risks:
Contains uranium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in proximity of the body. Store away from inhabited areas.

Internet Links for MetanatroautuniteHide

References for MetanatroautuniteHide

Localities for MetanatroautuniteHide

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 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). 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
 
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Robertstown
Peter Elliott
  • Victoria
    • Swan Hill Rural City
      • Lake Boga
Mills (2004) +1 other reference
  • Western Australia
    • Menzies Shire
      • Menangina Station
C.R.M. Butt and J. Graham (1981)
Egypt
 
  • Red Sea Governorate
    • Abu Ramad
Ehab K. Abu Zeid (2020)
Tajikistan
 
  • Sughd
    • Khodzhent (Leninabad)
Pekov (1998) +1 other reference
USA
 
  • Maine
    • Oxford County
      • Greenwood
        • Uncle Tom Mountain
Optical Analysis by A. Falster at Maine ... +1 other reference
  • South Dakota
    • Harding County
      • Cave Hills
Roberts et al. (1965)
      • North Cave Hills
Roberts et al. (1965)
Roberts et al. (1965)
      • Slim Buttes
Roberts et al. (1965)
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