Chemical Formula:See FLUORITE
Familly: Rock
Status: NR
Mineral for Display: No
UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Long Waves (365nm): | Green | Medium | Short Waves (254 nm): | Green | Strong |
Daylight Picture
Tiffany Stone, Juab Co., Utah, USA
;
Col. G.Barmarin; Photo: G. Barmarin
Long Waves Picture (365nm)
Tiffany Stone, Juab Co., Utah, USA
; UVLW
Col. G.Barmarin; Photo: G. Barmarin
Short Waves Pictures (254nm)
Tiffany Stone, Juab Co., Utah, USA
; UVSW
Col. G.Barmarin; Photo: G. Barmarin
A mixture of Bertrandite, purple Fluorite, Chalcedony and clays.
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
Peaks in the spectrum (nm):
UO22+ : 504, 524, 548, 572, 601nm
Col. G. Barmarin; Spectre: G. Barmarin
Green fluorescence due to the presence of trace of uranium in chalcedony (Typical spectrum of Uranyl)
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
http://www.mindat.org/show.php?name=Tiffany stone
http://webmineral.com/data/Tiffany stone.shtml
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