Database of luminescent Minerals


LIEBIGITE


Chemical Formula: Ca2(UO2)(CO3)3 11H2O

Familly: Carbonates

Status: IMA-GP

Crystal System: Orthorhombic

Mineral for Display: No

Associated names (luminescent varieties, discredited names, synonymes etc.):  uranothallite

Luminescence:


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Green StrongAlways
Short Waves (254 nm):      Bluish Green StrongAlways

Daylight Picture


LIEBIGITE ,
Schwartzwalder Mine, Jefferson Co., Colorado USA
Photo and Copyright: Christopher J. Stefano, Michigan, USA
Used with permission of the author

Long Waves Picture (365nm)


LIEBIGITE UVLW,
Schwartzwalder Mine, Jefferson Co., Colorado USA
Photo and Copyright: Christopher J. Stefano, Michigan, USA
Used with permission of the author

 

Phosphorescence (in the common meaning of the term) seen by naked eye:


No Data

Main Activator(s) and spectrum:


Most Common Activator: (UO2)2+ (Uranyl ion) intrinsic

Peaks in the spectrum (nm):

(UO2)2+ : 464.3 (SW only), 469.3 (LW only), 482.8, 503.3, 524.8, 548.5, 574.8, 604.6, 638.5


Col. G. Barmarin; Spectre: G. Barmarin

      ...

  To the spectrum gallery (2 spectra in the gallery)


Comments on activators and spectra:


Peak at 464.3 is SW only;

In shortwave, peaks at 482.8 and 503.3 have approximately the same height giving a bluer apparence to the fluorescence color (estimated RGB color: 65, 255, 132).

In Longwave, the peak at 503.3 dominates all other peaks giving a green fluorescence color (estimated RGB color: 65, 255, 100).


Best Locality for luminescence(*):


(*)Data are not exhaustive and are limited to the most important localities for fluorescence


Bibliographical Reference for luminescence:



Luminescence Reference on internet:



Mineralogical Reference on internet:


  http://www.mindat.org/show.php?name=Liebigite

  http://webmineral.com/data/Liebigite.shtml

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