Database of luminescent Minerals


POWELLITE


Chemical Formula: CaMoO4

Familly: Tungstates, Molybdates

Status: IMA-GP

Mineral for Display: Yes


Luminescence:


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Yellowish White WeakVery rarely
Short Waves (254 nm):      Yellowish White Very StrongAlways

Daylight Picture


POWELLITE, India.

Col. G.Barmarin; Photo: G. Barmarin

Short Waves Pictures (254nm)


POWELLITE, India.
OC (254 nm)
Col. G.Barmarin; Photo: G. Barmarin

 

Galerie de photos:

            ...

     To the gallery (10 images in the gallery)


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


No Data

Main Activator(s) and spectrum:


Most Common Activator: MoO42-

Peaks in the spectrum (nm):

MoO42- : Broad band peaking at 530 - 550 nm (Gorobets)

526, 564, 601, 646nm 

(Lifetime: 30 μs)


Col. G.Barmarin; Photo: G. Barmarin

   ...

  To the spectrum gallery (1 spectra in the gallery)


Comments on activators and spectra:


The natural photoluminescence emission of ordered CaMoO4 is attributed to an intrinsic slight distortion of the [MoO4] tetrahedral.


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=Powellite

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

Search on Internet:

  Search for images on 'Google Image'

  Search for documents in English on Google

  Search for documents in any languages on Google

  Search on Wikipédia


 

Note: While all due attention has been paid to the implementation of the database, it may contain errors and/or accidental omissions. By nature, the database will always be incomplete because science always evolves according to new analysis.
A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.

 


Quick search by fluorescent mineral name: