Planetary Simulant Database

Free Resource for Regolith Simulant Information

Mineralogy

Component OUHR-1 (wt.%) OUHR-2 (wt.%)
Fe-silicate 19 39
Phono-tephrite 27 27
Quartz 3 2
Dunite 11 11
Anorthosite 6 6
Wollastonite 3 3
Pyrite 6 6
Magnetite 4 4
Apatite 1 1
Gypsum 0 0
Hematite 20 1

Bulk Chemistry

Oxide OUHR-1 (wt.%) OUHR-2 (wt.%)
Na2O 2.07 2.19
MgO 7.77 7.52
Al2O3 7.88 8.45
SiO2 40.26 39.08
P2O5 0.61 0.65
SO3 1.411 1.104
K2O 1.46 1.53
CaO 6.55 6.57
TiO2 0.56 0.60
Cr2O3 0.111 0.137
MnO 0.19 0.25
Fe2O3 30.93 29.26
LOI -0.84 1.32
Total 99.94 99.31

Physical Properties

See Ramkissoon et al. 2019 for details.

Open University Haematite-rich

← Return to simulant listing

Simulant Name: Open University Haematite-rich
Availability: May Be Available
Fidelity: Standard
Developed By: Open University, United Kingdom
Available From: N/A
Publications: Ramkissoon, N. K. et al. (2019), New simulants for martian regolith: Controlling iron variability. Planetary and Space Science 179, 104722

Four new simulants and modifications were developed to replicate specific terrains on Mars based on rover data. They are chemically accurate with a specific focus on Fe2+/Fe3+ ratios, but are not mineralogically accurate (e.g., they contain significant quartz).

These simulants (OUHR-1 and -2) replicate hematite-rich regolith based on the Hematite Slope at Meridiani Planum. The -1 designation is for the standard simulants, and the -2 designation is for those with modified Fe2+ concentrations.

The main applications are for astrobiological laboratory simulations. Ramkissoon et al. state that at least 50 kg of each was produced, and more may be made in the future and available to others.