Ferro-nybøite, Annite, Calcite, Ferri-nybøite
Specimen ID: YD0-FN8
Ferro-nybøite : NaNa2(Fe2+3Al2)(AlSi7O22)(OH)2
Annite : KFe2+3(AlSi3O10)(OH)2
Calcite : CaCO3
Ferri-nybøite : NaNa2(Mg3Fe3+2)(AlSi7O22)(OH)2
As recorded:
Turii alkaline massif, Turii Cape, Murmansk Oblast, Russia
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Photo added to mindat.org
“Black prismatic crystals of Ferrinyböite Na3(Mg,Fe")3(Fe"',Al)2[Si7AlO22](OH,F)2 in Calcite carbonatite with associating Annite and Pyrite. FOV is ~ 8x7 mm. Collected and analysed by Igor V. Pekov. Pavel M. Kartashov collection (#2061) and photo.
”
Pavel Kartashov - 16th September 2007
Photo added to mindat.org
“Black prismatic crystals of Ferrinyböite Na3(Mg,Fe")3(Fe"',Al)2[Si7AlO22](OH,F)2 in Calcite carbonatite with associating Annite and Pyrite. FOV is ~ 12x10 mm. Collected and analysed by Igor Yu. Pekov. Pavel M. Kartashov collection (#2061) and photo.
”
Pavel Kartashov - 16th September 2007
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