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Uramarsite

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Big Photo

Darasun Au deposit, Vershino-Darasunskiy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
© Pavel M. Kartashov




Formula:
(NH
 
4
,H
 
3
O)
 
2
(UO
 
2
)
 
2
(AsO
 
4
,PO
 
4
)
 
2
 · 6H
 
2
O
System:Tetragonal
Member of:Meta-autunite Group
Name:The name reflects its composition: uranyl (Ur), ammonium (am) and arsenate (ars) ions, consistent with the prior naming of its phosphate analogue Uramphite.


Meta-autunite Group. Arsenate analogue of Uramphite.

Classification of Uramarsite

IMA status:Approved 2005
Strunz 8th edition ID:7/E.02-165
Nickel-Strunz 10th (pending) edition ID:8.EB.15

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
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Type Occurrence of Uramarsite

Type Locality:Bota-Burum U deposit, Lake Alakol (Lake Aaköl), Almaty Province (Almaty Oblysy; Almati Oblast'), Kazakhstan

Crystallography of Uramarsite

Crystal System:Tetragonal
Class (H-M):4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:P4/mmm {P4/m 2/m 2/m}
Cell Parameters:a = 7.19Å, c = 9.15Å
Ratio:a:c = 1 : 1.273
Unit Cell Volume:V 473.02 ų (Calculated from Unit Cell)

Chemical Properties of Uramarsite

Formula:
(NH
 
4
,H
 
3
O)
 
2
(UO
 
2
)
 
2
(AsO
 
4
,PO
 
4
)
 
2
 · 6H
 
2
O
Essential elements:As, H, N, O, U
All elements listed in formula:As, H, N, O, P, U

Relationship of Uramarsite to other Species

Member of:Meta-autunite Group
Other Members of Group:

- +
Abernathyite
K
 
2
(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 6H
 
2
O
Bassetite
Fe
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
Chernikovite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
Lehnerite
Mn
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
Meta-ankoleite
K
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
Meta-autunite
Ca(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6-8H
 
2
O
Metaheinrichite
Ba(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
Metakahlerite
Fe
2+
 
(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
Metakirchheimerite
Co(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
Metalodèvite
Zn(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 10H
 
2
O
Metanováčekite
Mg(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 4-8H
 
2
O
Metatorbernite
Cu(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
Metauranocircite
Ba(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 7H
 
2
O
Metauranospinite
Ca(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
Metazeunerite
Cu(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
Natrouranospinite
(Na
 
2
,Ca)(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 5H
 
2
O
Uramphite
(NH
 
4
)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.EB.05Autunite
Ca(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 11H
 
2
O
8.EB.05Heinrichite
Ba(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 10H
 
2
O
8.EB.05Kahlerite
Fe(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 12H
 
2
O
8.EB.05Nováčekite-I
Mg(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 12H
 
2
O
8.EB.05Saléeite
Mg(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 10H
 
2
O
8.EB.05Torbernite
Cu(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 12H
 
2
O
8.EB.05Uranocircite
Ba(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 10H
 
2
O
8.EB.05Uranospinite
Ca(UO
 
2
)(AsO
 
4
)
 
2
 · 10H
 
2
O
8.EB.05Xiangjiangite
(Fe
3+
 
,Al)(UO
 
2
)
 
4
(PO
 
4
)
 
2
(SO
 
4
)
 
2
(OH) · 22H
 
2
O
8.EB.05Zeunerite
Cu(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 12H
 
2
O
8.EB.05Metarauchite
Ni(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Bassetite
Fe
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Lehnerite
Mn
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Meta-autunite
Ca(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6-8H
 
2
O
8.EB.10Metasaléeite
Mg(UO
 
2
)(PO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Metauranocircite
Ba(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 7H
 
2
O
8.EB.10Metauranospinite
Ca(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Metaheinrichite
Ba(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Metakahlerite
Fe
2+
 
(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Metakirchheimerite
Co(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Metanováčekite
Mg(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 4-8H
 
2
O
8.EB.10Metatorbernite
Cu(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Metazeunerite
Cu(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.EB.10Przhevalskite
Pb
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 3H
 
2
O
8.EB.10Meta-lodèvite
8.EB.15Abernathyite
K
 
2
(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 6H
 
2
O
8.EB.15Chernikovite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
8.EB.15Meta-ankoleite
K
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
8.EB.15Natrouranospinite
(Na
 
2
,Ca)(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 5H
 
2
O
8.EB.15Trögerite
(UO
 
2
)
 
3
(AsO
 
4
)
 
2
 · 12H
 
2
O (?)
8.EB.15Uramphite
(NH
 
4
)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
8.EB.20Threadgoldite
Al(UO
 
2
)
 
2
(PO
 
4
)
 
2
(OH) · 8H
 
2
O
8.EB.20Chistyakovaite
Al(UO
 
2
)
 
2
(AsO
 
4
)
 
2
(F,OH) · 6.5H
 
2
O
8.EB.25Arsenuranospathite
HAl(UO
 
2
)
 
4
(AsO
 
4
)
 
4
 · 40H
 
2
O
8.EB.25Uranospathite
(Al,☐)(UO
 
2
)
 
2
(PO
 
4
)
 
2
F · 20(H
 
2
O,F)
8.EB.30Vochtenite
(Fe
2+
 
,Mg)Fe
3+
 
(UO
 
2
)
 
4
(PO
 
4
)
 
4
(OH) · 12-13H
 
2
O
8.EB.35Coconinoite
Fe
3+
2
Al
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
4
(SO
 
4
)(OH)
 
2
 · 20H
 
2
O
8.EB.40Ranunculite
HAl(UO
 
2
)(PO
 
4
)(OH)
 
3
 · 4H
 
2
O
8.EB.45Triangulite
Al
 
3
(UO
 
2
)
 
4
(PO
 
4
)
 
4
(OH)
 
5
 · 5H
 
2
O
8.EB.50Furongite
Al
 
13
(UO
 
2
)
 
7
(PO
 
4
)
 
13
(OH)
 
14
 · 58H
 
2
O
8.EB.55Sabugalite
HAl(UO
 
2
)
 
4
(PO
 
4
)
 
4
 · 16H
 
2
O

Other Names for Uramarsite

Synonyms:
IMA2005-043
Other Languages:

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.

References for Uramarsite

Reference List:

- +
Sidorenko, G.A., Chukanov, N.V., Chistyakova, N.I., Bebeshko, G.I., Zadov, A.E., Naumova, I.S. (2007): Uramarsite (NH4, H3O)2(UO2)2(AsO4,PO4)2•6H2O: A new mineral of the metaautunite group. Transactions (Doklady) of the Russian Academy of Sciences/Earth Science Section, 415A, 965-969

Internet Links for Uramarsite

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    • Localities for Uramarsite

    Hide Locality List
    (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.
    Kazakhstan
     
    • Almaty Province (Almaty Oblysy; Almati Oblast')
      • Lake Alakol (Lake Aaköl)
    		Sidorenko, G.A., Chukanov, N.V., Chistyakova, N.I., Bebeshko, G.I., Zadov, A.E., Naumova, I.S. (2007): Uramarsite (NH4, H3O)2(UO2)2(AsO4,PO4)2•6H2O: A new mineral of the metaautunite group. Transactions (Doklady) of the Russian Academy of Sciences/Earth Science Section, 415A, 965-969.
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Vershino-Darasunskiy
    		Pavel M. Kartashov analytical data
    Mineral and/or Locality
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