Planetary Simulant Database

Free Resource for Regolith Simulant Information


MMS simulant
Sodium Perchlorate
Illite (IMt-2)

Bulk Chemistry

No data available

Physical Properties

No data available

Rocknest Augmented MMS

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Simulant Name: Rocknest Augmented MMS (unofficial name)
Availability: May Be Available
Fidelity: Enhanced
Developed By: Johnson Space Center
Available From: N/A
Publications: Archer, P. D. Jr. et al. (2018), Augmenting the Mojave Mars Simulant to more closely match the volatile content of global martian soils based on Mars Science Laboratory Results. LPSC XLIX, Abstract #2806.

A group at Johnson Space Center is developing an augmented version of the original Mojave Mars Simulant to have a more realistic volatile release pattern. This is done by spiking the MMS simulant with various salts and oxides, and comparing the volatile release to results from the SAM instrument on MSL. The mineralogy and chemistry of the augmented MMS simulant differ somewhat from the Rocknest soil, for example there is much less of an amorphous component that is probably dominated by basaltic glass.

The purpose of this simulant is primarily for testing ISRU technology, with 800 kg already produced and more under development through a partnership with the USGS. It is not clear whether all the simulant produced will be kept internally by NASA, or whether any will be distributed to independent researchers.