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I?cristalli, di durezza media, fragili e dalla frattura irregolare, si sfaldano secondo una direzione. Il loro pleocroismo ? alquanto variabile: vi predominano i toni del viola, del bruno e del verdastro, fatta eccezione per la sottospecie manganoaxinite, in cui si osservano il blu, il viola e il grigio…..
Leggi scheda: Axinite
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