Chemical Formula: Ca2(Mg,Fe+2) (PO4)2 2H2O
Familly: Phosphates, Arseniates, Vanadates
Crystal System: Triclinic
Mineral for Display: No
|Long Waves (365nm): || Yellowish White ||Short Waves (254 nm): || Yellowish White |
Phosphorescence (in the common meaning of the term) seen by naked eye:
De Ment make an association between the name collinsite and quercyite a discredited name today.
Associated with scholzite;
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Reaphook Hill, Martins Well, South Flinders Ranges, Flinders Ranges, South Australia, Australia;
- Burns Lake, British Columbia, Canada (?);
- Francois Lake phosphate occurrence, Francois Lake, Omenica Mining Division, British Columbia, Canada (var. Quercyite, orange LW, nothing SW);
(*)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:
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