Chemical Formula: Ca2MgAl2BSi4O15(OH)
Crystal System: Triclinic
Mineral for Display: No
Associated names (luminescent varieties, discredited names, synonymes etc.): magnesioaxinite,
|Long Waves (365nm): || Red ||Short Waves (254 nm): || Red |
|Other colors SW: || |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Discovered in Tanzania 1975 and formerly known as Magnesio-axinite, it was renamed by the IMA in 2008 as Axinite-(Mg)
The magnesium analogue of Axinite-(Fe) and Axinite-(Mn).
Main Activator(s) and spectrum:
Most Common Activator: Cr3+
Peaks in the spectrum (nm):
Cr3+ : 687, 702nm
Best Locality for luminescence(*):
- Nandagala, Tanzania (blue-pink gemmy material);
- Merelani Hills, Lelatema Mts, Simanjiro District, Manyara Region, Tanzania (Strong red LW);
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
Luminescence Reference on internet:
Mineralogical Reference on internet:
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