DOUBTFULL FLUORESCENCE but cited by some authors
Chemical Formula: Mg SiO2 (OH)2 H2 O (?)
Mineral for Display: No
|Long Waves (365nm): || Yellowish ||Weak||Short Waves (254 nm): || Not fluorescent |
|Other colors LW: || |
Orangy yellow , Dark Orange /Tawn ,
Phosphorescence (in the common meaning of the term) seen by naked eye:
|Long Wave (365nm): ||No data ||Mid Waves (320 nm): ||No data ||Short Waves (254 nm): ||No data |
Cited by de Ment (1949) as doubtfully fluorescent under de name spadeite an erroneous name for spadaite and considered by him as a variety of sepiolite (meerschaum).
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
- Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,
Mineralogical Reference on internet:
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