Chemical Formula:See QUARTZ
Familly: Oxides and hydroxides
Status: NON APPR
Crystal System: Polycrystalline
Mineral for Display: Yes
Associated names (luminescent varieties, discredited names, synonymes etc.): chapinite,UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Long Waves (365nm): | Green | Short Waves (254 nm): | Yellowish White |
Other colors LW: | Bluish White , Yellowish White , Pale Yellow , Yellowish , | ||
Other colors SW: | Yellowish White , Pale Yellow , Green , Greenish , Greenish white , |
Daylight Picture
agate
Photo and Copyright: Bill Barr
Used with permission of the author;
Short Waves Pictures (254nm)
agate under SWUV
Photo and Copyright: Bill Barr
Used with permission of the author;
Siam agate: variety of chalcedony fluo green SW also called or chapinite, a mixture of agate and jasper.
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
Peaks in the spectrum (nm):
(UO2)2+ : 502,7, 521,5, 544, 566, 593nm
Col. G. Barmarin; Spectre: G. Barmarin
Typical spectrum linked to the presence of uranium ions.
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
http://www.mindat.org/show.php?name=Agate
http://webmineral.com/data/Agate.shtml
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