Mixed spectra of (a) ilmenite, (b) hematite, and (c) spinel with LHS-1, varying in mineral abundance. These spectra were collected using an ASD FieldSpec 4 high-resolution NG spectrometer under fixed viewing conditions (e = 0°, i = 30°). The 0 wt% spectrum represents pure LHS-1, while 100 wt% represents the pure mineral. The pure samples have a grain size of 20 μm and were measured under the same acquisition angles as the mixtures. Vertical offsets were applied for better visualization and are indicated in the graph. Dotted lines highlight mineral absorption band.