Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:OKANOGANITE-(Y)
Formula:Na(Y,Ce,Nd,Ca,Na)15Fe3+(Si3B3O18)(SiO4)4F10(OH)4
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:8/B.33-20
References:AM 65 (1980), 1138; HB2/2 (1995); AM 89 (2004), 1540
Type Locality:Washington Pass, Okanogan Co., Washington, USA

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