Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:GRAFTONITE
Formula:(Fe2+,Mn,Ca)3(PO4)2
Crystal System:Monoclinic
Strunz Nr:7/A.04-20
References:AM 53 (1968), 742; HB4 (2000)
Type Locality:Grafton, Melvin Mt, New Hampshire, USA

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