Database of luminescent Minerals

HANKSITE

Chemical Formula: KNa₂₂(SO₄)₉(CO₃)₂Cl

Familly: Sulfates

Status: IMA-GP

Crystal System: Hexagonal

Mineral for Display: No

Luminescence:

Daylight Picture

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

Short Waves Pictures (254nm)

HANKSITE;
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:

Main Activator(s) and spectrum:

Most Common Activator:

Peaks in the spectrum (nm):

490, 517, 553, 600, 650, 710nm

Comments on activators and spectra:

The luminescence of Hanksite was noticed by Kunz and Baskerville (1903) and has been studied by Melhase (1939).

Best Locality for luminescence(*):

• Searles Lake, San Bernardino Co., California, USA;

(*)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 ,
• Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,

Mineralogical Reference on internet:

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

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

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