| Microscopic analyses reveal that the oxide mineralogy of the dolerites is dominated by magnetite and ilmenite. |
| The Herbeira websterites contain diopside, enstatite, and pargasite with olivine, garnet, spinel, magnetite and ilmenite as minor phases. |
| The rock consists of plagioclase, K-feldspar, quartz, clinopyroxene and biotite, with abundant apatite, and ilmenite. |
| Lunar settlers could extract oxygen from the minerals ilmenite and anorthite. |
| It grades into a manganese-rich ilmenite that ultimately replaces the spinel phase near the transition to the garnet amphibolite. |
| The more pelitic samples contain euhedral orthopyroxene residual biotite, and dendritic ilmenite grains. |
