Nordgauite : MnAl2(PO4)2(F,OH)2·5H2O
Rittmannite : {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2·8H2O
Photo added to mindat.org
“White fibrous spheres of nordgauite and yellow crystals of rittmannite.
Ex Jürgen Kastning collection.”
Leon Hupperichs - 17th December 2014
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