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Catapleiite: (Na,Ca,[ ])2ZrSi3O9·2(H2O) Aegirine: NaFe+++Si2O6
Comments: Clear crystals of catapleiite with an attached 1.8 cm prismatic crystal of dark aegirine. Location: Mt. St. Hilaire, Quebec, Canada. Scale: 3.5 x 2.2 cm. © John Veevaert