Database of luminescent Minerals

CARPATHITE

Chemical Formula: C₂₄H₁₂

Familly: Organic

Status: IMA-GP

Mineral for Display: Yes

Luminescence:

Daylight Picture

carpathite (KARPATITE)
Picacho Mine, New Idria District, San Benito Co., California, USA;
Col. G.Barmarin; Photo: G. Barmarin

Short Waves Pictures (254nm)

carpathite (KARPATITE), UVSW
Picacho Mine, New Idria District, San Benito Co., California, USA;
Col. G.Barmarin; Photo: G. Barmarin

Galerie de photos:

     To the gallery (4 images in the gallery)

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

Comments:

Chemically identical to Coronene (Hexabenzobenzene), a polycyclic aromatic hydrocarbon used to produce Organic Electroluminescent Material.

The name replaces pendletonite (CNMMN, 1971), karpatite and coronene.

Karpathite is composed of flakes of pure coronene embedded in sedimentary rock. This mineral may result from ancient hydrothermal vent activity. See gallery for a scheme of the chemical structure of coronene.

Beware when manipulating, coronene is toxic and carcinogen:

• toxic, Carc. cat. 2
• Principal way of exposition to coronene : skin
• Inhalation: toxic: possibility irreversible effects if inhaled.
• Ingestion: Toxic: danger of very serious irreversible effects if swallowed.
• Skin Contact : Harmful: danger of serious damage to health by prolonged skin contact.
• Eyes Contact : Risk of serious eyes damages

Main Activator(s) and spectrum:

Most Common Activator: Intrinsic organic material

Peaks in the spectrum (nm):

462nm, (482), (493), (503), (515)

  To the spectrum gallery (1 spectra in the gallery)

Comments on activators and spectra:

Blue luminescence due to the two linearly annelated benzene rings characteristic of aromatic compound (singlet-singlet electron transition within the benzene rings).

Spectral lines (cm^-1): 208, 192, 178, 164.

Best Locality for luminescence(*):

• Picacho Mine, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA ;
• 4th of July Mine, Flint group, Hernandez, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA ;
• Alpine Mine, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA ;
• Tamvatnei Hg deposit, Tamvatnei massif, Koryakskoe plateau, Chukotskii Autonomous Okrug, Far-Eastern Region, Russia ;
• Olenevo, Svalyavskyi Raion, Zakarpats'ka Oblast', Ukraine ;

(*)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 ,
• 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 ,

Luminescence Reference on internet:

Images:




• Olenevo, Ukraine: http://www.mindat.org/photo-691255.html
• Picacho Mine, Ca, USA: http://www.mindat.org/photo-554727.html
• Picacho Mine, Ca, USA: http://www.mindat.org/photo-421057.html
• Picacho Mine, Ca, USA: http://www.mindat.org/photo-376686.html
• Picacho Mine, Ca, USA: http://www.mindat.org/photo-345837.html
• Alpine Mine, Ca, USA: http://www.mindat.org/photo-175001.html

Mineralogical Reference on internet:

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

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

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