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Ammoniovoltaite from
Severo-Kambalny geothermal field, Kambalny volcanic ridge, Kamchatka Krai, Russia

Locality type:Geothermal Field
Classification
Species:Ammoniovoltaite
Formula:(NH4)2Fe52+Fe33+Al(SO4)12(H2O)18
Chemical Analyses:
Oxide wt%:
1
FeO13.26 %
Fe2O311.58 %
MgO2.33 %
ZnO0.04 %
Al2O32.74 %
SO347.46 %
K2O0.19 %
CaO0.11 %
(NH4)2O2.96 %
H2O16.03 %
Total:96.7 %
Empirical formulae:
1[(NH4)1.88K0.08Ca0.04]Σ2.00(Fe2+3.74Mg1.17Fe3+0.05Zn0.01)Σ4.97(Fe3+2.89Al0.09)Σ2.98Al1.00(SO4)12.00(H2O)18.00
Sample references:
SampleReference
1Type SpecimenZhitova, E.S., Siidra, O.I., Belakovsky, D.I., Shilovskikh, V.V., Nuzhdaev, A.A., Ismagilova, R.M. (2018) Ammoniovoltaite, (NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18, a new mineral from the Severo-Kambalny geothermal field, Kamchatka, Russia. Mineralogical Magazine: 82: 1057-1077.
Confirmation
Validity:Valid - Type Locality
References
References:Zhitova, E.S., Siidra, O.I., Shilovskikh, V.V., Belakovsky, D.I., Nuzhdaev, A.A. and Ismagilova, R.M. (2017) Ammoniovoltaite, IMA 2017-022. CNMNC Newsletter No. 38, August 2017, page 1035; Mineralogical Magazine: 81: 1033–1038.; Zhitova, E.S., Siidra, O.I., Belakovsky, D.I., Shilovskikh, V.V., Nuzhdaev, A.A., Ismagilova, R.M. (2018) Ammoniovoltaite, (NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18, a new mineral from the Severo-Kambalny geothermal field, Kamchatka, Russia. Mineralogical Magazine: 82: 1057-1077.
Data
Mineral Data:Click here to view Ammoniovoltaite data
Locality Data:Click here to view Severo-Kambalny geothermal field, Kambalny volcanic ridge, Kamchatka Krai, Russia
 
Mineral and/or Locality  
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