Luminescence, fluorescence and phosphorescence of minerals

TALC-1A

Chemical Formula: Mg₃Si₄O₁₀(OH)₂

Familly: Silicates

Status: IMA-GP;PLM

Crystal System: Triclinic

Mineral for Display: No

Associated names (luminescent varieties, discredited names, synonymes etc.): steatite,

Luminescence:

UV Type	Main color	Intensity	Observation Frequency

Long Waves (365nm):	Yellowish White
Short Waves (254 nm):	Yellowish White

Daylight Picture

TALC
Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author

Short Waves Pictures (254nm)

TALC 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:

No Data

Main Activator(s) and spectrum:

Most Common Activator: Mn²⁺

Other activators: TiO₆ , O^* , n[TiO₆] cluster ,

Peaks in the spectrum (nm):

O*_Si around SiO₄ : 360nm

TiO_n (Ti⁴⁺ - Si⁴⁺) : 520nm

n.TiO_n : 550nm

Mn²⁺ repl. Mg²⁺ : 600nm

No spectrum for the moment

Best Locality for luminescence(*):

Balmat and Talcville, New york, USA;
Franklin, New jersey, USA;
Jefferson, NY, USA (var Rensselaerite, talc after pyroxene yellowish-white LW);

(*)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 ,
Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,

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.
A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.

Database of luminescent Minerals

TALC-1A

Luminescence:

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

Main Activator(s) and spectrum:

Best Locality for luminescence(*):

Bibliographical Reference for luminescence:

Luminescence Reference on internet:

Mineralogical Reference on internet:

Search on Internet: