Chemical Formula: Ca28Mn6Zn4(Be,Zn)4Be12(SiO4)12(Si2O7)8(OH)12
Crystal System: Monoclinic
Mineral for Display: No
|Long Waves (365nm): || Red ||Weak||Short Waves (254 nm): || Red ||Weak|
Phosphorescence (in the common meaning of the term) seen by naked eye:
This is a hydroxyl calcium manganese zinc berylo-silicate from Franklin, NJ. It has been found in andradite lined vugs in franklinite, and in willemite ore. Fluorescence is weak red under SW and LW. .
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Franklin, Franklin Mining District, Sussex Co., New Jersey, USA ;
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
Luminescence Reference on internet:
- Am Min 80
- Lapis Vol.20, #5, 1995 Article by S Weiss
Mineralogical Reference on internet:
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