MASC-4

Origin

The samples were produced using Mojave Mars Simulant 2 (MMS2) powder (Peters et al. 2008).

Main constituent
MMS2
Cosmic analogs density
compact
Color
Brown-reddish
Particle size Mie: reff (μm)
1.25
Particle size Mie: veff
1.37
Size distribution plot:
Size distribution MMS2 (MASC-4)
Size distribution table
size_MMS2_powder_2.txt
Particle shape

We studied four 0.2 × 0.4 cm (radius × height) cylindrically shaped aggregates with different surface roughnesses: MASC-1, MASC-2, MASC-3 and MASC-4. 

SEM/TEM images:
MASC-4 SEM image 100 um
MASC-4 SEM image 50 um
Images:
MASC-4 AFM Patch-3
MASC-4 AFM Patch-2
Number of measurements
2
Scattering matrix (1) wavelength in nm
640.00 nm
Scattering matrix (1) table
matrix_MASC-4_640nm.txt
Scattering matrix (1) plot:
Scattering matrix elements MASC-4 640 nm
Scattering matrix (2) wavelength in nm
488.00 nm
Scattering matrix (2) table
Matrix_MASC-4_488nm.txt
Scattering matrix (2) plot:
Scattering matrix elements MASC-4 488 nm
Refractive index

m(640 nm) = 1.5 + i 0.00035

m(488 nm) = 1.5 + i0.0011

Angle range (deg)
[94,177]
Reference/s
Frattin et al., 2025
García-Izquierdo et al., 2026