Chemical Formula: (Na,Ca,K)8 (Si,Al)12O24 (SO4,Cl,CO3)3 H2O
Familly: Silicates
Status: IMA-A
Crystal System: Hexagonal
Mineral for Display: No
UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Long Waves (365nm): | Yellow | Strong | Rarely | Mid waves (320 nm): | Orange Red | Short Waves (254 nm): | Orange | Medium | Rarely |
Other colors LW: | Yellowish White , Orangy yellow , Orange , | ||
Other colors MW: | Orangy yellow , Orange , | ||
Other colors SW: | Pinkish White , Orange , Orange Red , Red , Salmon pink , Yellowish , |
Blue afghanite external crystal with a white core: only the inner part does fluoresce;
Most Common Activator: S2-
Peaks in the spectrum (nm):
S2- : 564, 585, 604, 625, 648, 672, 703nm
Col. G. Barmarin; Spectre: G. Barmarin
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Images:
http://www.mindat.org/show.php?name=Afghanite
http://webmineral.com/data/Afghanite.shtml
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