Tugtupite PL/Laser measurement, 410 nm laser beam, 20K, Gaft <i>et al.</i> 2009

Tugtupite PL/Laser measurement, 410 nm laser beam, 20K, Gaft et al. 2009

Reference	Gaft et al. 2009 Gaft M., Panczer G., Nagli L. & Yeates H. (2009). Laser-induced time-resolved luminescence of tugtupite, sodalite and hackmanite., 36(3), 127-141. DOI: https://doi.org/10.1007/s00269-008-0263-1
Material	Tugtupite [ Na₄BeAlSi₄O₁₂Cl ] Luminescence of tugtupite under longwave UV illumination, from Tunulliarfik Fjord, IlÍmaussaq complex, Narsaq, Kujalleq, Greenland Photo by Géry PARENT (via Wikimedia Commons). CC-BY-SA 4.0
Specimen temperature	20K
Analysis technique	Laser photoluminescence (PL)
Probe	410 nm laser beam
Det. technology	Intensified CCD
Lines	S2^- 548 nm, 566 nm, 584 nm, 605 nm, 625 nm, 649 nm, 670 nm, 697 nm, 722 nm

Nominal composition of Tugtupite [ Na₄BeAlSi₄O₁₂Cl ].
Element	Atoms	At%	Wt%
Na	4	17.4	19.7
Al	1	4.35	5.77
Be	1	4.35	1.93
Si	4	17.4	24
O	12	52.2	41
Cl	1	4.35	7.58
Total	23	100	100