Chemical Formula: Na4Ca10Ti2(Si2O7)4F8
Mineral for Display: No
|Short Waves (254 nm): || Orange ||Medium||Often|
|Other colors SW: || |
Pale Yellow ,
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Comments on activators and spectra:
Cathodoluminescence: yellowish-green (Khibiny).
Best Locality for luminescence(*):
- Barkevik, Langesundfjord, Norway;
- Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
- Fluorescence: Gems and Minerals Under Ultraviolet Light, Manuel Robbins, 1994, Geoscience Press, ISBN 0-945005-13-X ,
Luminescence Reference on internet:
- MONT-SAINT-HILAIRE, History, Geology, Mineralogy, Laszlo HORVATH, The Canadian Mineralogist, Special Publication 14, 2019
Mineralogical Reference on internet:
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