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Niocalite Image

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Large Niocalite Image

Mineral: Niocalite: Ca14Nb2(Si2O7)4O6F2
Comments: Yellowish brown crystal prisms of niocalite in a carbonatite rock matrix.
Location: Oka, Oka complex, Deux-Montagnes Co., Québec, Canada.
Scale: Crystal length 1 cm.
Copyright: © Jeff Weissman / Photographic Guide to Mineral Species
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