CHONDRODITE
Chemical formula: (Mg,Fe+2)5(SiO4)2(F,OH)2
Status: IMA-GP
Display mineral: NON
Luminescence:
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Longwave UV (365nm) colors: | Yellowish ,
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| Intensity LW:Very weak
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Shortwave UV (254nm) colors: | Yellow ,
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| Intensity SW:Strong
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Shortwave (254nm) picture
Col. G.Barmarin; Photo: G. Barmarin
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Phosphorescence (in the common sense of the term) observable with the naked eye:
No data
Comments:
Easily confused with NORBERGITE which is visually very similar to it.
Activator(s) and spectrum:
No data
Peaks in the spectrum (nm):
Broad band peaking around 570-580nm
Col. G. Barmarin; Spectre: G. Barmarin
Best localities for fluorescence (*):
- Langban, Varmland Province, Sweden;
- Skräbböle quarry, Pargas (Parainen), Southwestern Finland Region, Finland (bright yellow SW);
- Edison-Bodnar Quarries, Franklin Marble Belt, Rudeville, Hardyston Township, Sussex Co., New Jersey, USA;
- Fowler Quarry (Nicoll Quarry; Nicols Quarry; Cellate Quarry), Franklin Marble, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA;
- Lime Crest Quarry, Franklin Marble, Sparta Township, Sussex County, New Jersey, USA
- Atlas Quarry (Empire Quarry), Pine Island, Town of Warwick, Orange Co., New York, USA;
- South Central Patagonia Mountains, Patagonia Mountains, Santa Cruz Co., Arizona, USA;
- Long Lake Zinc Mine, Olden Township, Frontenac County, Ontario, Canada;
- Gouverneur Talc Company No. 4 Quarry, Diana Township, Lewis Co., New York, USA;
- Johnson Mine, Johnson Camp, Cochise Mining District, Little Dragoon Mountains, Cochise County, Arizona, USA:
(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence
Bibliographic reference for luminescence:
- Collecting Fluorescent Minerals, Stuart Schneider, Schiffer Publishing, 2004, ISBN 0-7643-2091-2 ,
- Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
Reference for luminescence on the Internet:
Mineralogical reference on the Internet:
http://www.mindat.org/show.php?name=Chondrodite
http://webmineral.com/data/Chondrodite.shtml
Internet Search:
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