Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:JAHNSITE-(MnMnMn)
Formula:(Mn2+,Ca)Mn2+(Mn2+,Fe2+)2Fe3+2(PO4)4(OH)2 · 8H2O
Crystal System:Monoclinic
Strunz Nr:7/D.29-75
Group:Jahnsite Group
References:MM 42 (1978), 309
Type Locality:Stewart mine, Pala, San Diego Co., California, USA

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