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Agrellite: NaCa2Si4O10F Eudialyte: Na4(Ca,Ce)2(Fe++,Mn,Y)ZrSi8O22(OH,Cl)2 (?)
Comments: Tan agrellite grain, with red eudialyte. Location: Kipiwa Complex, Villedieu, Quebec, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species