Database of luminescent Minerals


WOLLASTONITE-1A


Chemical Formula: CaSiO3

Familly: Silicates

Status:

Crystal System: Triclinic

Mineral for Display: Yes


Luminescence:


UV Type Main color Intensity Observation Frequency
Short Waves (254 nm):      Orangy yellow Strong
Other colors SW:                    
Bluish White , Yellowish White , Yellow , Orange ,

Daylight Picture


WOLLASTONITE, Sterling Hill Zinc Mine,
Odgensburg, near Franklin New Jersey, USA;
Photo and Copyright: James Van Fleet

Short Waves Pictures (254nm)


WOLLASTONITE fluo yellow UVSW,
Sterling Hill Zinc Mine,
Odgensburg, near Franklin New Jersey, USA;
Photo and Copyright: James Van Fleet

 

Galerie de photos:

            ...

     To the gallery (9 images in the gallery)


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


UV Type Color Intensity Observation Frequency
Short Waves (254 nm): Orange Strong
 

Thermoluminescence: Yes


Comments:


From the White Knob quarry in the San Berardino Mts. CA, remarkable examples of orange or yellow-orange fluorescing wollastonite SW in blocky sections with orange-red fl. calcite SW and also red-fluorescing feldspar (species unidentified) of unusually high brightness. Information and help from Howard Brown and Lyman Hayes. Activator: Mn with Pb as coactivator?? Activator: probably Mn2+ substituting to Ca2+; also Fe3+ and Cr3+ found (Gaft).


Main Activator(s) and spectrum:


Most Common Activator: Mn2+

Other activators:            Cr3+ , Fe3+ ,

Peaks in the spectrum (nm):

Mn2+I repl. Ca2+I : 555-560nm

Mn2+II repl. Ca2+II  : 580nm  

Mn2+III repl. Ca2+III : 603, 640nm

Fe3+ repl. Si4+ : 690-700nm

Cr3+ : narrow R-lines at 720nm

Cr3+II : 794nm

Cr3+III : 840nm  


Copyright Michael Gaft and Al. with permission of the author


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=Wollastonite-1a

  http://webmineral.com/data/Wollastonite-1a.shtml

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