Owl - coll. P.P. ATHENA

MINERALOGY

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Mineral:FLUORNATROPYROCHLORE
Formula:(Na,REE,Ca)2Nb2(O,OH)6F
Crystal System:Cubic
Strunz Nr:4/C.12-12
Group:Pyrochlore group Pyrochlore subgroup
References:CM 98 (2010), 673

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