DARAPSKITE
Chemical Formula: Na3(SO4)(NO3) H2O
Status: IMA-GP
Mineral for Display: No
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Mid waves (320 nm): | Greenish Blue | | | | | | |
Phosphorescence (in the common meaning of the term) seen by naked eye:
UV Type |
Color |
Intensity |
Observation Frequency |
Mid Waves (320 nm): | Greenish Blue | Strong | |
Comments:
Cited by Shopov in his papers about paleoluminescence;
Darapskite from Flower Cave, one of a group of caves located at the southern end of Big Bend National Park, Texas, U.S.A, does not fluoresce under short- or long-wave ultraviolet light; but the flower(darapskite+halite) phosphoresces green for approximately 5 seconds after irradiation with short-wave ultraviolet light.
Main Activator(s) and spectrum:
No data
Best Locality for luminescence(*):
- Flower Cave, one of a group of caves located at the southern end of Big Bend National Park, Texas, U.S.A (darapskite+halite, green phosphorescence SW);
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
Luminescence Reference on internet:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Darapskite
http://webmineral.com/data/Darapskite.shtml
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