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Ferro-ferri-winchite from
Marinkas Kwela, Karasburg West, ǁKaras Region, Namibia


Locality type:Complex
Classification
Species:'Ferro-ferri-winchite' (not an IMA approved species)
Formula:◻(CaNa)(Fe42+Fe3+)Si8O22(OH)2
Chemical Analyses:
Oxide wt%:
1
SiO248.36 %
TiO21.02 %
Al2O31.42 %
Fe2O37.48 %
FeO25.34 %
MnO2.07 %
MgO1.00 %
CaO4.20 %
Na2O4.93 %
K2O0.73 %
Total:96.55 %
Sample references:
1 -
Smithies, R. H. (1992). The geochemical evolution of three alkaline complexes in the Kuboos-Bremen igneous province, southern Namibia.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ferro-ferri-winchite data
Locality Data:Click here to view Marinkas Kwela, Karasburg West, ǁKaras Region, Namibia
Data Identifiers
Mindat Occurrence Record ID:1511052
Long-form Identifier:1:3:1511052:3
GUID (UUID V4):0
References
Smithies, R. H. (1992). The geochemical evolution of three alkaline complexes in the Kuboos-Bremen igneous province, southern Namibia.
Smithies, R. H., Marsh, J. S. (1996) Alkaline rocks in the Kuboos-Bremen Igneous Province, southern Namibia: the Grootpenseiland and Marinkas Kwela Complexes. Communications of the Geological Survey of Namibia, 11. 13-20
 
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