Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:SCHWERTMANNITE
Formula:Fe3+16O16(OH)12(SO4)2
Crystal System:Quadratic (Tetragonal)
Strunz Nr:4/F.06-55
References:MM 58 (1994), 641; HB3 (1997); NM 90-94 (1997)
Type Locality:Pyhäsalmi, Oulu, Finland

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