| Iddingsite is a mixture of orthopyroxene, maghemite, hematite, cristobalite, and amorphous silica that is formed from olivine. |
| Small and intermediate size nodules at the top of the profile have the highest proportions of hematite and maghemite, no PDM, and minor amounts of hydrated mineral phases. |
| There are records of micrometeorite protoliths of maghemite and goethite. |
