Astrophyllite Group Visible Spectra (400 - 1100 nm)
The astrophyllite group members are sheet silcates Two members presented here are:
Astrophyllite, Na3Mn7Ti2(Si4O12)2O2(OH)4F(H2O)2
Kupletskikte, K2NaMn7Ti2(Si4O12)2O2(OH)4F
- Astrophyllite NOR1b from the Langesundsfjord Area, Norway. Thin section of the the Fe-Ti end-member. Described in Piilonen et al. (2003) Insights into astrophyllite-group minerals. II. Crystal Chemistry. The Canadian Mineralogist 41, 27-54.
- Astrophyllite RUS-1,1 from Khibina, Kola Penninsula, Russia. Thin section of the the Fe-Ti end-member. Described in Piilonen et al. (2003) Insights into astrophyllite-group minerals. II. Crystal Chemistry. The Canadian Mineralogist 41, 27-54.
- Kupletskite MSH-20,1 from Mont Saint-Hilaire, Quebec. Thin section of the Mn-Ti end-member. Described in Piilonen et al. (2003) Insights into astrophyllite-group minerals. II. Crystal Chemistry. The Canadian Mineralogist 41, 27-54.
- Literature spectrum; Data
digitized from Manning PG (1969a) Canadian Mineralogist 9, 663-677. Data
Files: E
perpendicular to c; E||c ;
Link
to references to visible spectroscopy of
astrophyllite.
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revised 12-Feb-2025
