Axinite and its paragenesis with hedenbergite

Journal of Research of the U. S. Geological Survey, 1978, volume 6, issue 5

“…3), only the axinite from Petsamo, Finland (Simonen and Wiik, 1952), plots closer to the Fe corner. High-iron ferroaxinites, with total iron as FeO ranging from more than 10.5 to 11.88 weight percent, have been reported by Azimov (1970), Kurshakova (1968), Kurshakova and Tikhomirova (1974), Otroshchenko (1971), and Serdyuchenko and Pavlov (1962). The ferrous-ferric oxide ratio varies widely for these and for other analyses of axinite.…”