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Sodium Meta-autunite

Formula:
Na
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 6-8H
 
2
O
System:TetragonalColour:lemon yellow
Lustre:VitreousHardness:2 - 2½
Name:The name reflects its sodium content.


Meta-autunite Group

Classification of Sodium Meta-autunite

Strunz 8th edition ID:7/E.02-125

7 : Phosphates, Arsenates, Vanadates
E : Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-
02 : Meta-autunite group
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Physical Properties of Sodium Meta-autunite

Lustre:Vitreous
Colour:lemon yellow
Streak:pale yellow
Hardness (Mohs):2 - 2½
Cleavage:Perfect

Crystallography of Sodium Meta-autunite

Crystal System:Tetragonal

Optical Data of Sodium Meta-autunite

Type:Uniaxial (-)
RI values: nω = 1.578 nε = 1.559
Maximum Birefringence:δ = 0.019

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Chemical Properties of Sodium Meta-autunite

Formula:
Na
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 6-8H
 
2
O
Essential elements:H, Na, O, P, U
All elements listed in formula:H, Na, O, P, U

Relationship of Sodium Meta-autunite to other Species

Member of Group:
Meta-autunite Group:
A(UO
 
2
)
 
2
(XO
 
4
)
 
2
·nH
 
2
O (n = 6, 7 or 8)
Related Minerals - Strunz Grouping):

- +
7/E.02-10Metanováčekite
Mg(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 4-8H
 
2
O
7/E.02-20Bassetite
Fe
2+
 
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-30Metakahlerite
Fe
2+
 
(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-40Lehnerite
Mn
2+
 
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-50Metakirchheimerite
Co(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-60Metatorbernite
Cu(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-70Metazeunerite
Cu(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-80Metalodèvite
Zn(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 10H
 
2
O
7/E.02-90Meta-autunite
Ca(UO
 
2
)
 
2
[PO
 
4
]
 
2
· 6-8H
 
2
O
7/E.02-100Metauranospinite
Ca(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-110Metauranocircite
Ba(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 7H
 
2
O
7/E.02-120Metaheinrichite
Ba(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 8H
 
2
O
7/E.02-130Natrouranospinite
(Na
 
2
,Ca)(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 5H
 
2
O
7/E.02-140Meta-ankoleite
K
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 6H
 
2
O
7/E.02-150Abernathyite
K
 
2
(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 6H
 
2
O
7/E.02-160Uramphite
(NH
 
4
)
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 6H
 
2
O
7/E.02-165Uramarsite
(NH
 
4
,H
 
3
O)
 
2
(UO
 
2
)
 
2
[(AsO
 
4
,PO
 
4
)]
 
2
 · 6H
 
2
O
7/E.02-170Chernikovite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 6H
 
2
O
7/E.02-180Pseudo-autunite
(H
 
3
O)
 
4
Ca
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
4
 · 5H
 
2
O (?)
7/E.02-190Ulrichite
CaCu(UO
 
2
)[PO
 
4
]
 
2
 · 4H
 
2
O

Other Information

Health Warning: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 Sodium Meta-autunite

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    Localities for Sodium Meta-autunite

    (TL) indicates type locality. ? 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.
    Tajikistan
     
    • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
      • Khodzhent (Leninabad)
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 11th Nov 2009 10:39:52