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Caryochroite: (Na,Sr)3(Fe+++,Mg)10[Ti2Si12O37](O,OH)9·8H2O
Comments: Hazel brown aggregate of caryochroite tubes. (CanMin, v44:1331). Location: Umbozero mine, Alluaiv, Lovozero, Kola Peninsula, Russia. Scale: Specimen size 5 x 6 cm. © Canadian Mineralogist