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Murmanite: (Na,[ ])2{(Na,Ti)4[Ti2(O,H2O)4Si4O14](OH,F)2}·2H2O
Comments: Metavolcanic matrix hosting several bright pink lath shaped crystals of murmanite. Location: Ilimaussaq, Illua, Greenland. Scale: Crystal size 1.6 cm. © John Veevaert