Database of luminescent minerals 

BARYSILITE

DOUBTFUL FLUORESCENCE but sometimes cited in luminescence literature

Chemical formula: Pb₈Mn(Si₂O₇)₃

Family: Silicates

Status: IMA-GP

Display mineral: NON

Luminescence:

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Phosphorescence (in the common sense of the term) observable with the naked eye:

No data

Comments:

Reported fluo from Langban but not Franklin.

In Jakobsberg, Sweden, wolastonite and margarosanite replace barysilite (see picture by Kjell Gatedal http://www.mindat.org/photo-241911.html )

Doubtfull luminescence; in Langban, Barysilite is mixed with svabite (fluo SW orange) and calcite (fluo red SW). Close observation of the xls of Barysilite from Langban seems to indicate that it is not responding to UV.

Activator(s) and spectrum:

No spectrum yet

Best localities for fluorescence (*):

• Långban, Filipstad, Värmland, Sweden;
• Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA;

(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence

Bibliographic reference for luminescence:

• The Henkel Glossary of Fluorescent Minerals, Dr. Gerhard Henkel, Published by the FMS, 1989 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

  http://www.mindat.org/show.php?name=Barysilite

  http://webmineral.com/data/Barysilite.shtml

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