Sodalite CL/SEM spectrum, 10 keV e- beam, CSIRO 2021
Measurement details
| Description | CL spectrum of Sodalite (CSIRO P432) |
| Reference | Otherwise unpublished luminescence spectra measured by the CSIRO Mineral Resources Microbeam Laboratory, Clayton https://research.csiro.au/microbeam-lab/ |
| Date measured | 2021-08-19 |
| Material | Sodalite [ Na4(Si3Al3)O12Cl ] |
| Specimen | P-0432 Blue sodalite [CSIRO - Microbeam Lab P-mounts], Poudrette Quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada |
| Technique | Cathodoluminescence (CL), using an Electron Probe Micro-Analyser (EPMA) |
| Instrument | JEOL 8500F |
| Probe | 10 keV electron beam |
| Beam current | 5.003 nA |
| Probe diameter | 2 μm |
| Detector name | QE65000 |
| Det. technology | CCD, Si, Peltier cooled |
| Slit width | 200 μm |
| Acquisition time | 65.52 s |
| Channel count | 1024 |
| Energy range | 1.26882 … 6.19608 eV |
| Intensity range | 0.816456 … 99.6248 (normalised intensity) |
| Data filter | Savitzky-Golay, 3rd order, ±20 channels |
| Lines | F+ center 2.7 — 4.1 eV (18.4%), Fe3+ 1.814 eV (100%), Unspecified 2.078 eV (23.4%) |
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Na | 4 | 17.4 | 19 |
| Al | 3 | 13 | 16.7 |
| Si | 3 | 13 | 17.4 |
| O | 12 | 52.2 | 39.6 |
| Cl | 1 | 4.35 | 7.32 |
Measurement spectrum
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Measurement image
CL spectrum of Sodalite (CSIRO P432)
© (C) 2021 CSIRO Mineral Resources