Chemical Formula: (Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 3H2O
Mineral for Display: No
|Mid waves (320 nm): || Violet blue ||Medium||Short Waves (254 nm): || Violet blue ||Weak|
Phosphorescence (in the common meaning of the term) seen by naked eye:
Associated with microcline, clinoamphibole and narsarssukite.
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Poudrette Quarry, Mont St Hilaire, Quebec, Canada;
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
Luminescence Reference on internet:
- UV-Waves Vol 39, Nov-Dec. 2009;
- Mineral News, Vol 25, N°11, Nov.2009;
Mineralogical Reference on internet:
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