Observer les objets géologiques

Astrophyllite

 K2NaFe7Ti2(Si4O12)2O2(OH)4F

Sample : Peralkaline nepheline syenite containing brown astrophyllite slats.

Location : Africa, Guinea, Los Archipelago,

Raman Spectrum of Astrophyllite (20) Raman Spectrum of Astrophyllite (20)
Analysis settings : Unoriented sample. Laser wavelength: 514.5 nm.
Instrument : Spectrometer : Labram HR800 vis Jobin Yvon Horiba, semi-confocal microscope. Laser source : Spectra Physics 2018 Ar+/Kr+
2016