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FIGMAS
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First entry: 01/02/16 || Last update: 28/07/21 || Status: accepted
| General information | |
|---|---|
|
Mineral class
Sub-class Species |
Oxide Simple oxide Corundum |
| Synthetic? | yes |
|
Formula Standard element(s) |
Al2O3 Al |
| Origin, rock type... | None (synthetic) |
No images found...
(*) Recommended analysis.
| Analysis 1 | |
|---|---|
| Reference | E. Jarosewich |
| Analysis type | unknown |
| Analysis comment | From spectrometric analysis (wt%): Si 0.03, Fe 0.003, Mg 0.007, Ca 0.003, Na 0.005, K 0.005. |
| Wt-% oxide | Wt-% element | Atom: N/A | ||
|---|---|---|---|---|
| 99.9900 | Al2O3 | 52.9204 47.0696 | Al O | |
| 99.990 | 99.990 | |||
This material exhibits cathodoluminescence peaks at approximately 330, 575 and 728 nm. Samples exhibit permanent induced CL as can be seen in grains used as electron beam references.
Smithsonian Institution
PO Box 37012
SI Building, Room 153, MRC 010
Washington, D.C. 20013-7012
USA
https://mineralsciences.si.edu/facilities/standards.htm
Material: mineral (size: 0.250 mm - ca. 0.177 mm)
https://naturalhistory.si.edu/research/mineral-sciences/collections-overview/reference-materials/smithsonian-microbeam-standards
