Figure 7. (Left) Microscopy of the basalt and (Right) of the regolith. Data from Chambers et al. in

From

Space Resources Engineering: Ilmenite Deposits for Oxygen Production on the Moon

Gustavo Jamanca-Lino

American Journal of Mining and Metallurgy. 2021, 6(1), 6-11 doi:10.12691/ajmm-6-1-2