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Phillipsite-Na: (Na,K,Ca)1-2(Si,Al)8O16·6(H2O) Tacharanite: Ca12Al2Si18O33(OH)36
Comments: Spherical tacharanite aggregates on phillipsite crystals. Location: Espalion, Aveyron, France. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Phillipsite-Na: (Na,K,Ca)1-2(Si,Al)8O16·6(H2O)
Comments: Phillipsite, variety wellsite, crystals on matrix. Location: Near Ronca, Verona, Veneto, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species