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ATHENA

MINERALOGY

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Mineral:NIOCALITE
Formula:Ca14Nb2(Si2O7)4(O6F2)
Crystal System:Monoclinic
Strunz Nr:8/C.11-40
Group:Wohlerite group
References:CM 6 (1958), 264; HB2/2 (1995)
Type Locality:Bond zone, Oka, Deux-Montagnes Co., Québec, Canada

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