Database of luminescent Minerals


SPHALERITE


Chemical Formula: (Zn,Fe)S

Familly: Sulfide

Status: IMA-GP

Crystal System: Isometric

Mineral for Display: Yes

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

Luminescence:


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Orange Strong
Short Waves (254 nm):      Orange Medium
Other colors LW:                              
Pale Yellow , Yellow , Orangy yellow , Orange , Greenish Yellow , Yellowish ,
Other colors SW:                         
Pale Yellow , Yellow , Orangy yellow , Greenish Yellow , Yellowish ,

Daylight Picture


SPHALERITE;
Franklin Mine, Franklin Mining District, Sussex Co., New Jersey, USA
Photo and Copyright:
Middleearthminerals.com
Used with permission of the author

Long Waves Picture (365nm)


SPHALERITE;
Franklin Mine, Franklin Mining District, Sussex Co., New Jersey, USA
UVLW, Photo and Copyright:
Middleearthminerals.com
Used with permission of the author

Short Waves Pictures (254nm)


SPHALERITE;
Franklin Mine, Franklin Mining District, Sussex Co., New Jersey, USA
UVSW, Photo and Copyright:
Middleearthminerals.com
Used with permission of the author

 

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


No Data

Triboluminescence: Yes

Thermoluminescence: Yes


Comments:


synonyme: blende ; brunckite = colloïdal sphalerite  ; variety cleiophane: orange SW and LW;


Main Activator(s) and spectrum:


Most Common Activator: Mn2+

Other activators:            Cu+ ,

Peaks in the spectrum (nm):

Mn2+ replacing Zn2+ : large band peaking at 595 nm 

VZn-Cl- : 450-460-470nm

Cu+-Ga3+, Cu+-In3+ repl Zn2+ : 640-670-675nm 

No spectrum for the moment

Comments on activators and spectra:


Ed. Becqurel studied the decay of the phosphorescence of the different component (bands) of the spectrum of ZnS, proposing a number of mathemetical expression to interpret this phenomenon (1860).

One of the oldest studies on activator in zinc sulphide was made by H. Grune (1904). He noted that a small amont of manganese in ZnS produced an orange luminescence and triboluminescence in a very similar way as the natural mineral. Jorrissen and Ringe (1904) also studied zinc sulfide fluorescence.

The influence of the irradiation by a red light and infrared radiations upon the photoluminescence has been studied by C. Peirce (1906) under a variety of conditions.

Nichols found the presence of 48 bands/peaks in the spectrum coinciding in part with thallium, Erbium, Ytterbium. 

[after De Ment, 1949]


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=Sphalerite

  http://webmineral.com/data/Sphalerite.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: