Chemical Formula: Pb3Ca2(AsO4)3Cl
Familly: Phosphates, Arseniates, Vanadates
Mineral for Display: No
|Long Waves (365nm): || Orange ||Mid waves (320 nm): || Red ||Short Waves (254 nm): || Orange |
|Other colors LW: || |
|Other colors MW: || |
|Other colors SW: || |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Samples from Langban are sometimes considered as mislabeled and could be mimetite.
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA (red to orange, MW best);
- Langban (Långban), Filipstad, Varmland Province, Sweden (pink LW, pale orange MW, bright orange SW);
- Långban, Filipstad, Värmland, Sweden (very pale yellow-brown SW mimetite?);
- Vrančice, Příbram, Central Bohemia Region, Bohemia, Czech Republic (pale orange MW);
(*)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 ,
Luminescence Reference on internet:
Mineralogical Reference on internet:
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