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Vlasovite: Na2ZrSi4O11 Eudialyte: Na4(Ca,Ce)2(Fe++,Mn,Y)ZrSi8O22(OH,Cl)2 (?)
Comments: Transparent yellow-gray vlasovite crystal frozen in pink eudialyte matrix. Location: Kipawa alkaline complex, near Sheffield Lake, Villedieu Township, Témiscamingue Co., Québec, Canada. Scale: 2x2x1 cm. © John Betts - Fine Minerals