Chemical Formula: (Sr,Ca)5(PO4)3(OH,F)
Familly: Phosphates, Arseniates, Vanadates
Status: IMA-GP
Mineral for Display: No
UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Short Waves (254 nm): | Orange Red | ||
Most Common Activator: Sm3+
No spectrum for the momentSm3+(4f5): Fluorescence spectra are observed from the 4G(4)5/2 to the 6H5/2 (ground state), 6H7/2,6H9/2, and part of the 6H11/2 manifolds. The strongest fluorescence is observed to the 6H9/2 manifold. The distribution of the fluorescence intensities is similar to that observed for the Sm3+-doped glass laser.
Source: Spectra and energy levels of trivalent samarium in strontium fluorapatite, Gruber, John B.; Zandi, Bahram; Ferry, Michael; Merkle, Larry D., Journal of Applied Physics, Volume 86, 1999.
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
http://www.mindat.org/show.php?name=Strontium-apatite
http://webmineral.com/data/Strontium-apatite.shtml
Search for images on 'Google Image'
Search for documents in English on Google
Search for documents in any languages on Google