Secondary standard
NOTES: Homogeneous, but stay away from the many cracks, pits, and dark blue areas seen in the X-ray map.
 |  |
| Position | 50 |
| Mineral | Diopside, chromian |
| Sample Name | DiCr |
| Type | Pyroxene |
| Nominal formula | Ca(Mg,Fe,Cr)[Si2O6] |
| Supplier | Cannon Microprobe, Seattle, WA |
| Source | Sahaeffer Kimberlite, Wyoming |
| Original reported analysis | – |
| Composition quality | Secondary standard |
| Comments | EDS analysis and stoichiometry, assuming half of Al is octahedral |
| O Na Mg Al Si Ca Ti Cr Fe | 44.19 1.53 9.64 1.51 25.07 14.69 0.2 1.41 1.76 |
