Agrellite PL measurement, 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
Analysis technique	Photoluminescence (PL)
Lines	Gd³⁺ 312 nm, {{linesearch:4b5f5798-ef47-494c-9ef6-2ac2ed0e5db3\|Mn²⁺}}: 580 nm, {{linesearch:a9ea0ee9-bec4-43a6-8467-d31f574fa39b\|Sm³⁺}}: 597 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
Total	18	100	100