Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:NATROPHARMACOSIDERITE
Formula:(Na,K)2Fe3+4(AsO4)3(OH)5 · 7H2O
Crystal System:Quadratic (Tetragonal) pseudo Cubic
Strunz Nr:7/D.47-30
Group:Pharmacosiderite Group
References:AM 71 (1986), 230; HB4 (2000); MR 39/2 (2008), 131
Type Locality:Marda, Western Australia, Australia

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