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Formula: Na(NaCa)(Mg4Fe3+)(Si7Al)O22(OH)2
Inosilicate (chain silicate), double chains,
katophorite root name group,
sodium-calcium amphibole subgroup,
w(OH,F,Cl)-dominant amphibole group,
amphibole supergroup
The kataphorite group species with Mg and Fe3+>Al in the C position was named magnesio-ferrikatophorite in the 1978
and 1997 amphibole nomenclatures. The katophorite group minerals were redefined in the 2012 amphibole nomenclature,
renaming the Mg, Fe3+ and (OH) dominant member of the group ferri-katophorite
(Mindat).
Crystal System: Monoclinic
Ferri-katophorite from In den Dellen quarries,
Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany - Image
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