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Obradovicite-NaNa

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Formula:
[Na2(H2O)16Na(H2O)6][Mo8As2Fe33+O33(OH)4]
System:
Orthorhombic
First recognized as a potential hypothetical member of the Betpakdalite group (IMA 10-E). Later in 2011, approved by IMA as a valid species.

Classification of Obradovicite-NaNa

Approved 2011
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http://www.mindat.org/min-41949.html
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First Recorded Occurrence of Obradovicite-NaNa

Place of Conservation of First Recorded Material:
Natural History Museum of Los Angeles County, catalogue numbers 63313 and 63314

Crystallography of Obradovicite-NaNa

Crystal System:
Orthorhombic
Cell Parameters:
a = 14.8866(11) Å, b = 11.0880(2) Å, c = 15.0560(3) Å
Ratio:
a:b:c = 1.343 : 1 : 1.358
Unit Cell Volume:
V 2,485.18 ų (Calculated from Unit Cell)
Comment:
Space group: Pnmb
X-Ray Powder Diffraction Data:
d-spacingIntensity
10.641(43)
8.954(100)
7.487(21)
3.716(15)
2.987(18)
2.906(29)
2.602(16)

Chemical Properties of Obradovicite-NaNa

Formula:
[Na2(H2O)16Na(H2O)6][Mo8As2Fe33+O33(OH)4]
Essential elements:
All elements listed in formula:

Relationship of Obradovicite-NaNa to other Species

Other Members of Group:
Obradovicite-KCu[K2(H2O)17Cu(H2O)6][Mo8As2Fe33+O34(OH)3]
Obradovicite-NaCuNa2(H2O)17Cu(H2O)6][Mo8As2Fe33+O34(OH)3]

Other Names for Obradovicite-NaNa

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 Obradovicite-NaNa

Reference List:
Kampf, A.R., Mills, S.J., Birch, W.D. and Dini, M. (2011) Obradovicite-NaNa, IMA 2011-046. CNMNC Newsletter No. 10,October 2011, page 2559

Internet Links for Obradovicite-NaNa

Localities for Obradovicite-NaNa

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.
Chile
 
  • Antofagasta Region
    • El Loa Province
      • Calama
        • Chuquicamata District
Kampf, A.R., Mills, S.J., Birch, W.D. and Dini, M. (2011) Obradovicite-NaNa, IMA 2011-046. CNMNC Newsletter No. 10,October 2011, page 2559
Mineral and/or Locality  
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