Arseniosiderite : Ca2Fe3+3(AsO4)3O2·3H2O
Jarosite : KFe3+3(SO4)2(OH)6
Mindat locality:
Photo added to mindat.org
“Arseniosiderite yellowish on 1 st generation of Jarosite (dark brown)and 2nd Generation of Jarosite Light brown.
p.w. 1,68 mm,Coll. Fred Trotsenburg,Photo Ko Jansen.”
Ko Jansen - 21st March 2014
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