Martian Analog (MGS-1 M)
Practical significance
The MGS-1 analog is a mineralogical standard for basaltic soils on Mars, developed based on quantitative mineralogy from the MSL Curiosity rover.
Origin
The MGS-1 (Mars Global Simulant) is made by sourcing individual minerals, including a proper treatment of the X-ray amorphous component. It was developed by the University of Central Florida.
Main constituent
Plagioclase
Color
Gray
Particle size Mie: reff (μm)
1.6
Particle size Mie: veff
0.75
Particle size
The sample was processed at the Instituto de Cerámica y Vidrio (CSIC-ICV) to produce a narrow particle size distribution centered at 3-4 micrometers.
Size distribution plot:
Size distribution table
SEM/TEM images:
Scattering matrix (1) wavelength in nm
488.00 nm
Scattering matrix (1) table
Scattering matrix (1) plot:
Scattering matrix (2) wavelength in nm
640.00 nm
Scattering matrix (2) table
Scattering matrix (2) plot:
Refractive index
The complex refractive indices of the MGS-1 analogue were retrieved using the MGS-1 XL sample for a wavelength range of 200-2000 nm (see Martikainen et al., 2023). For the wavelengths of the scattering matrix measurements, the values were interpolated as shown by Martikainen et al., (2024).
At 488 nm, n = 1.5 and k =0.00042. At 640 nm, n = 1.5 and k = 0.00043.
Optical Properties
Phase matrices
Angle range (deg)
[3,177]
Reference/s