Apatite (var. lunar) CL spectrum, 15 keV e- beam, CSIRO/WUStL Apollo 12 (2019)
Measurement spectrum
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Measurement details
| Description | CL spectrum of Apatite (var. lunar), from Apollo 12 mission |
| Reference | Otherwise unpublished work by CSIRO & WUStL, Apollo 12, AMAS XV. Feb 2019 https://research.csiro.au/microbeam-lab/ |
| Date measured | 2019-02-21 |
| Material | Apatite (var. lunar) [ Ca5(PO4)3(OH, F, Cl) ] |
| Analysis technique | Cathodoluminescence (CL) |
| Instrument | JEOL 8500F |
| Probe | 15 keV electron beam |
| Beam current | 39.68 nA |
| Probe diameter | 1 μm |
| Acquisition time | 36.6922 s |
| Channel count | 1024 |
| Wavelength range | 199.467 … 970.586 nm |
| Intensity range | -309 … 7954 counts |
| Integral | 2.4754×106 counts |
Specimen details
| Name | Apollo 12032-366-19x |
| Owner | NASA |
| Locality | Bench Crater, Ocean of Storms, 3.01239°S 23.42157°W, The Moon |
| URL | https://curator.jsc.nasa.gov/lunar/lsc/12032.pdf |
| Type | Rock fragment |
| Form | Polished section, epoxy mount |
| Other measurements |
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Specimen image
Clustered phase map of Apollo 12032-366-19x specimen, from Ocean of Storms, 3.01239°S 23.42157°W, The Moon
© (C) 2019 CSIRO Mineral Resources
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| H | ~0.3333 | ~1.563 | ~0.06599 |
| Ca | 5 | 23.4 | 39.4 |
| P | 3 | 14.1 | 18.3 |
| O | ~12.33 | ~57.81 | ~38.75 |
| F | ~0.3333 | ~1.563 | ~1.244 |
| Cl | ~0.3333 | ~1.563 | ~2.321 |