Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:LAUBMANNITE
Formula:(Fe3+,Fe2+)2Fe3+6(PO4)5(OH)9 · 2H2O
Crystal System:Orthorhombic
Strunz Nr:7/D.11-65
References:AM 75 (1990), 1197; EJM 13(2001), 99
Type Locality:Shady, Polk Co., Arkansas, USA

Mineral:LAUBMANNITE (of Frondel) = DUFRENITE + KIDWELLITE + BERAUNITE

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