DOUBTFULL FLUORESCENCE but cited by some authors
Chemical Formula: Y4Al(CO3)2(OH)10F · 6H2O
Familly: Carbonates
Status: IMA-A
Crystal System: Orthorhombic
Mineral for Display: No
UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Long Waves (365nm): | No data | Mid waves (320 nm): | No data | Short Waves (254 nm): | No data |
UV Lamp luminsecence to be confimed.
Most Common Activator: Dy3+
No spectrum for the momentStrong luminescence features, in the form of many groups of sharp bands, superimposed on a broad band centered at about 570 nm. The main luminescence peaks are located in the region between 560 and 590 nm; the strongest ones are at 573, 576, and 582 nm. Other weaker groups of luminescence bands are visible in the regions around 488 and 752 nm (using the 473.1 nm excitation) and 660 nm (using the 632.8 nm line). Dy3+ could be the cause of these luminescence bands, except the broad ones (Gaft et al. 2005); this observation agrees with the fact that Dy3+ is the main substituent of Y3+, as shown by EPMA data. (see publication of BIAGIONI et Al.)
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
http://www.mindat.org/show.php?name=Lusernaite-(y)
http://webmineral.com/data/Lusernaite-(y).shtml
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