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Villiaumite: NaF
Comments: Nearly opaque crystalline villiaumite cleavage. Location: Mount Kukisvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Villiaumite: NaF Griceite: LiF
Comments: White aggregates of griceite with pinkish villiaumite. Location: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mt Saint-Hilaire, Rouville Co., Québec, Canada. Scale: Picture size 3.5 mm. © Thomas Witzke / Abraxas-Verlag
Villiaumite: NaF Naujakasite: Na6(Fe++,Mn)Al4Si8O26
Comments: Greenish-gray crystals of naujakasite with red villiaumite. Location: Narsaq river, Kvanefjeld Mt., Ilímaussaq massif, Greenland. Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag
Villiaumite: NaF Aplowite: (Co,Mn,Ni)SO4·4(H2O)
Comments: Pink aplowite laths intergrown with lustrous, red, massive villiaumite. Location: Mt Rasvumchorr, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: 20x19x18 mm. © John Betts - Fine Minerals