Primary standard
NOTES: Homogeneous, end member composition as seen by EDS. Stay away from little pits.
 |  |
| Position | 69 |
| Mineral | Hematite |
| Sample Name | Hem |
| Type | Oxide |
| Nominal formula | Fe2O3 |
| Supplier | Cannon Microprobe, Seattle, WA |
| Source | LaPaz, Arizona |
| Original reported analysis | Calculated from ideal formula |
| Composition quality | Primary standard |
| Comments | Pure based on EDS analysis, ideal calculation accepted. |
| O Fe | 30.06 69.94 |
