Agrellite PL/XL measurement, x-ray beam, Gorobets 1981

Reference	Gorobets B.S. Spectra of Luminescence of Minerals. - Moscow: Printed by VIMS (All-Union Sci. Res. Inst. of Min. Resources). - 1981. - 153 p.
Material	Agrellite [ NaCa₂Si₄O₁₀F ] Fluorescent agrellite, Museo di Storia Naturale (Florence) © Photograph by Sailko (via Wikimedia Commons), CC-BY-SA 3.0
Specimen temperature	Ambient
Technique	X-ray photoluminescence
Probe	X-ray beam
Line	Ce³⁺ 375 nm

Nominal composition of Agrellite [ NaCa₂Si₄O₁₀F ].
Element	Atoms	At%	Wt%
Na	1	5.56	5.83
Ca	2	11.1	20.3
Si	4	22.2	28.5
O	10	55.6	40.6
F	1	5.56	4.82