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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 Magnetite |
| Synthetic? | no |
|
Formula Standard element(s) |
Fe3O4 Fe |
| Origin, rock type... | Minas Gerais, Brazil |
No images found...
(*) Recommended analysis.
| Analysis 1 | |
|---|---|
| Reference | J. Norberg |
| Analysis type | unknown |
| Analysis comment | MnO < 0.01 wt%. |
| Wt-% oxide | Wt-% element | Atom: N/A | ||
|---|---|---|---|---|
| 67.5000 30.2000 0.0500 0.1600 0.2500 | Fe2O3 FeO MgO TiO2 Cr2O3 | 47.2116 23.4747 0.0302 0.0959 0.1711 27.1766 | Fe3+ Fe Mg Ti Cr O | |
| 98.160 | 98.160 | |||
Rare impurities: Ilmenite.
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: 1.0 mm - 0.5 mm, 0.5 mm - 0.25 mm, 0.25 mm - 0.177 mm, or < 0.177 mm)
https://naturalhistory.si.edu/research/mineral-sciences/collections-overview/reference-materials/smithsonian-microbeam-standards
