Database of luminescent Minerals

KRATOCHVILITE

Chemical Formula: C₁₃H₁₀

Familly: Organic

Status: IMA-GP

Crystal System: Orthorhombic

Mineral for Display: No

Luminescence:

Daylight Picture

KRATOCHVILITE, Terril de Tamines, Belgique;

Col. G.Barmarin; Photo: G. Barmarin

Long Waves Picture (365nm)

KRATOCHVILITE, Terril de Tamines, Belgique;
UVLW
Col. G.Barmarin; Photo: G. Barmarin

Short Waves Pictures (254nm)

KRATOCHVILITE, Terril de Tamines, Belgique;
UVSW
Col. G.Barmarin; Photo: G. Barmarin

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

Main Activator(s) and spectrum:

Most Common Activator: Intrinsic organic material

Peaks in the spectrum (nm):

large band. max: 460nm, band at 572 nm / peaks at: 408nm, 434nm, 460nm, 488nm, 512nm

Comments on activators and spectra:

Organic compound formed in burning pyritic shale or coal fires. It is not clear whether kratochvillite is the chemical fluorene (C₁₃H₁₀) or anthracene (C₁₄H₁₀).

Best Locality for luminescence(*):

• Freital near Dresden, Saxony, Germany;
• Kladno Mine, Libušin, Kladno, Central Bohemia Region, Bohemia, Czech Republic;
• Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany;

(*)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 ,

Luminescence Reference on internet:

• UV-Waves September/October 1996, UV Minerals in former East Germany by H.J.Weller and J. Slacik reprinted from Fundgrube, XXVI, 1990,#3

Mineralogical Reference on internet:

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

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

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