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Edenite: NaCa2Mg5Si7AlO22(OH)2 Pargasite: NaCa2(Mg,Fe++)4Al(Si6Al2)O22(OH)2
Comments: Blocky, dark green crystals of visually indistinguishable pargasite and edenite. Location: Kolonne bei, Embilipitiya, Sri Lanka. Scale: 4.5 x 1.7 x 3.7 cm. © Fabre Minerals
Edenite: NaCa2Mg5Si7AlO22(OH)2
Comments: Green granular edenite in fine-grained phlogopite. Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species