Primary standard
NOTES: Homogeneous.
 |  |
| Position | 32 |
| Mineral | Diopside glass, nickel |
| Sample Name | DiGlass |
| Type | Glass |
| Nominal formula | Ca(Mg,Ni,Fe)Si2O6 |
| Supplier | Cannon Microprobe, Seattle, WA |
| Source | Synthesized by M. Drake. |
| Original reported analysis | American Museum of Natural History electron probe standard. |
| Composition quality | Primary standard |
| Comments | AMNH composition taken as-is. |
| O Mg Al Si Ca Fe Ni | 43.01 8.62 0.45 24.91 17.87 0.12 5.06 |
