TREMOLITE
Chemical Formula: XCa2Mg5Si8O22(OH)2
Familly: Silicates
Status:
Crystal System: Monoclinic
Mineral for Display: No
Associated names (luminescent varieties, discredited names, synonymes etc.):
hexagonite,
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Orange | | | Short Waves (254 nm): | Orange Red | | | | | | |
Other colors LW: | Yellowish White , Pale Yellow , Yellowish , |
Other colors SW: | Bluish White , Yellow , Blue , sky-blue , |
Daylight Picture
TREMOLITE
Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author
Short Waves Pictures (254nm)
TREMOLITE under uvSW
Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author
Phosphorescence (in the common meaning of the term) seen by naked eye:
UV Type |
Color |
Intensity |
Observation Frequency |
Short Waves (254 nm): | Red | | |
Triboluminescence: Yes
Thermoluminescence: Yes
Comments:
Gouverneur Talc Co, Balmat and Talcville: tremolite (fl. orange SW) associated with tirodite (fl.red SW) and talc (fl. yellow SW).
Main Activator(s) and spectrum:
Most Common Activator: Mn2+
Other activators: Cr3+ , Fe3+ ,
Peaks in the spectrum (nm):
Mn2+I repl. Ca2+ : 580nm
Fe3+ repl. Si4+ : 720-740nm
Cr3+ repl. Mg2+? : 690-698nm
No spectrum for the moment
Best Locality for luminescence(*):
- Gouverneur Talc Co, Balmat and Talcville, St Lawrence County, New York, USA ;
- Edwards , New York, USA; (fluo orange SW and triboluminescent);
- Rhein property, Amity, Town of Warwick, Orange Co., New York, USA (white-blue SW);
- Conklin Limestone Company quarry, Falls Village, Canaan, Litchfield Co., Connecticut, USA (blue SW);
- Farber Quarry, Franklin, New jersey, USA (blue SW);
- Nellie Ulmer Quarry, Rockland, Maine, USA;
- Tremola, Switzerland (bright yellow thermoluminescence);
- Canaan, Litchfield Co., Connecticut, USA (SW yellow);
- Yerington, Yerington District, Singatse Range, Lyon Co., Nevada, USA (Blue-white LW);
- Elsfjord, Vefsn, Nordland, Norway (blue SW);
- Campolungo, Piumogna Valley, Leventina, Ticino (Tessin), Switzerland (blue SW);
- Gilgit-Baltistan, Pakistan;
(*)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 ,
- The World of Fluorescent Minerals, Stuart Schneider, Schiffer Publishing, 2006, ISBN 0-7643-2544-2 ,
- Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
- Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,
Luminescence Reference on internet:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Tremolite
http://webmineral.com/data/Tremolite.shtml
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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.
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