Database of luminescent Minerals


HARDYSTONITE


Chemical Formula: Ca2ZnSi2O7

Familly: Silicates

Status: IMA-GP

Mineral for Display: Yes


Luminescence:


UV Type Main color Intensity Observation Frequency
Mid waves (320 nm):      Violet blue MediumOften
Short Waves (254 nm):      Violet blue MediumVery often
Other colors SW:          
Blue , Violet ,

Daylight Picture


HARDYSTONITE with minor Willemite,
Franklin, New Jersey zinc mine, USA;
Photo and Copyright: James Van Fleet

Short Waves Pictures (254nm)


HARDYSTONITE (UVSW) with minor Willemite (fluo green)
and some Clinohedrite (fluo orange)
Franklin, New Jersey zinc mine, USA;
Photo and Copyright: James Van Fleet

 

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


No Data

Comments:


Some samples appears to fluoresce brighter under MW than SW; this phenomenon could be due to the fact that theresponse of the willemite often associated is duller under MW, so the fluorescence of hardystonite is better viewed. 

">

A \"classics\" for Franklin minerals collectors.

Some samples appears to fluoresce brighter under MW than SW; this phenomenon could be due to the fact that theresponse of the willemite often associated is duller under MW, so the fluorescence of hardystonite is better viewed. 


Main Activator(s) and spectrum:


Most Common Activator: Mn2+

Other activators:            Pb2+ , Ce3+ , Dy3+ , Tm3+ ,

Peaks in the spectrum (nm):

Pb2+: 355nm
Ce3+: 378nm
Ce3+: 400nm
Mn2+: 525nm
Mn2+: 545nm
Mn2+: 575nm


Spectrum: Michael Gaft, Petah Tikva, Israel. Plot: Institute of Mineralogy, University of Vienna, Austria, with permission of the authors.

      ...

  To the spectrum gallery (2 spectra in the gallery)


Comments on activators and spectra:


Pb2+  : 355 nm 
Mn2+ :  525 and 575nm
Ce3+ : 378, 400 nm
Tm3+, Dy3+

Decay time: several ms


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=Hardystonite

  http://webmineral.com/data/Hardystonite.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: