Forsterite CL/TEM measurement, 120 keV e- beam, LN2 (77K), Benstock et al. 1997
Measurement details
| Reference | Benstock et al. 1997 Benstock E. J., Buseck P. R. & Steele I. M. (1997). Cathodoluminescence of meteoritic and synthetic forsterite at 296 and 77 K using TEM. American Mineralogist, 82(3-4), 310-315. DOI: https://doi.org/10.2138/am-1997-3-409 |
| Material | Forsterite [ Mg2SiO4 ] |
| Specimen temperature | LN2 (77K) |
| Technique | Cathodoluminescence (CL), using a Transmission Electron Microscope (TEM) |
| Instrument | Philips 400T TEM |
| Probe | 120 keV electron beam |
| Probe diameter | 14 μm |
| Slit width | 500 μm |
| Lines | Cr 700 — 800 nm, Cr3+ 693 nm, 698 nm, 708 nm, 715 nm, 721 nm, 740 nm |
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Mg | 2 | 28.6 | 34.6 |
| Si | 1 | 14.3 | 20 |
| O | 4 | 57.1 | 45.5 |