Database of luminescent minerals 

LUSERNAITE-(Y)

DOUBTFUL FLUORESCENCE but sometimes cited in luminescence literature

Chemical formula: Y₄Al(CO₃)₂(OH)₁₀F · 6H₂O

Family: Carbonates

Status: IMA-A

Crystal system : Orthorhombic

Display mineral: NON

Luminescence:

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Phosphorescence (in the common sense of the term) observable with the naked eye:

No phosphorescence visible to the naked eye under any type of UV

Comments:

UV Lamp luminsecence to be confimed.

Activator(s) and spectrum:

Activator(s): Dy³⁺,

No spectrum yet

Comments on spectrum and activators:

Strong 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.)

Best localities for fluorescence (*):

• Seccarezze Quarries, Luserna Stone Quarries, Luserna Valley, Pellice Valley, Torino Province, Piedmont, Italy;

(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence

Bibliographic reference for luminescence:

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

  http://www.mindat.org/show.php?name=Lusernaite-(y)

  http://webmineral.com/data/Lusernaite-(y).shtml

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