  This study analyzes the mechanical and elemental properties of lunar
meteorites DHOFAR 1084, JAH 838, NWA 11444, and HED meteorite NWA 6013.
Utilizing microscale rock mechanics experiments, i.e., nanoindentation testing,
this research reveals significant heterogeneity in both mechanical and
elemental attributes across the minerals of the samples. Olivines, pyroxen,
feldspar, and spinel demonstrate similar compositional and mechanical
characteristics. Conversely, other silicate and oxide minerals display
variations in their mechanical properties. Terrestrial olivines subjected to
nanoindentation tests exhibit increased hardness and a higher Young's modulus
compared to their lunar counterparts. A linear correlation is observed between
the H/Er ratio and both plastic and elastic energies. Additionally, the
alignment of mineral phases along a constant H/Er ratio suggests variations in
local porosity. This study also highlights the need for further research
focusing on porosity, phase insertions within the matrix, and structural
orientations to refine our understanding of these mechanical characteristics.
The findings have direct implications for in-situ resource utilization (ISRU)
strategies and future state-of-the-art impact models. This comprehensive
characterization serves as a foundational resource for future research efforts
in space science and mining.
