WOLLASTONITE-1A
Chemical Formula: CaSiO3
Familly: Silicates
Status:
Crystal System: Triclinic
Mineral for Display: Yes
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Yellow | Medium | | Mid waves (320 nm): | Orangy yellow | Medium | | Short Waves (254 nm): | Orangy yellow | Strong | | | | | |
Other colors LW: | Yellowish White , Pale Yellow , Orangy yellow , Yellowish , |
Other colors MW: | Bluish White , Yellowish White , Yellow , Orange , |
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).
In Jakobsberg, Sweden, wolastonite and margarosanite replace barysilite (see picture by Kjell Gatedal in bibliography )
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 + 794 - 840nm broad band
Cr3+II : 794nm
Cr3+III : 840nm
Copyright Michael Gaft and Al. with permission of the author
Comments on activators and spectra:
Steady-state luminescence of wollastonite has been previously studied and luminescence of Mn2+, Fe3+ and supposedly Cr3+ has been proposed (Min’ko et al. 1978). (Gaft)
Best Locality for luminescence(*):
- Nobel Pit, Sterling Hill Mine, Ogdensburg, Sussex County, New jersey, USA;
- White Knob quarry, Lucerne Valley Limestone Province, San Berardino County, California, USA;
- Desert View mine, Holcomb Valley, San Bernardino County, California, USA;
- Desert View Mine, Fawnskin (Grout), Bear Valley District, San Bernardino Mts, San Bernardino Co., California, USA (SW orange +calcite SW red + aragonite SW bluish-white)
- Yuma, Yuma District, Yuma Co., Arizona, USA;
- Third find (i.e. Wollastonite in calcite associated with Baryte) Franklin Mine, Franklin, Sussex County, New Jersey, USA;
- Jakobsberg Mine, Jakobsberg ore field, Nordmark district, Filipstad, Värmland, Sweden;
- Älgfalls (Elgfall) mine, Kopparberg, Ljusnarsberg, Västmanland, Sweden (yellowish-white SW);
- Santa Fé Mine, Pichucalco, Pichucalco Municipality, Chiapas, Mexico;
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
- The Henkel Glossary of Fluorescent Minerals, Dr. Gerhard Henkel, Published by the FMS, 1989 ,
- Fluorescence: Gems and Minerals Under Ultraviolet Light, Manuel Robbins, 1994, Geoscience Press, ISBN 0-945005-13-X ,
- The World of Fluorescent Minerals, Stuart Schneider, Schiffer Publishing, 2006, ISBN 0-7643-2544-2 ,
- Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
- Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
- Franklin Website: http://franklin-sterlinghill.com ,
- Luminescenza nel regno minerale, Guido Mazzoleni, fotografia Roberto Appiani, Libri Sandit, 2010, ISBN 978-88-95990-63-7 ,
- Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,
Luminescence Reference on internet:
- Picking Table Journal, num.2, vol. 45, 2004
- Der Aufschluss, Vol.48, n°2 March/April 1997 Langban minerals by Fritz Blatter;
- The Picking Table (Journal of the Franklin-Ogdensburg Mineralogical Society), vol. 55, no. 2, p. 13-25
- MONT-SAINT-HILAIRE, History, Geology, Mineralogy, Laszlo HORVATH, The Canadian Mineralogist, Special Publication 14, 2019
Images:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Wollastonite-1a
http://webmineral.com/data/Wollastonite-1a.shtml
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