The Hidaka viridine : A Second Look
Rodney Grapes, Seiji Hashimoto · Institutional Repositories DataBase (IRDB) · 1977
Viridine from the Chiroro River area, Hidaka Mountains, coexisting with Mn-phengitespessartine-piedmontite -Mn-tourmaline -Ti-Mn haematite in a quartz schist has been reanalysed by EPMA.Comparison with viridine compos'itions from other localities in the world indicates a range of A13' i (Mn, Fe)3' substi'tution ranging from 2.0:O.O (andalusite) to 1.45:O.55(the most Mn-rich andalusite yet reported).