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Colorado School of Mines CSM-MGS-1

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Simulant Name: CSM-MGS-1 Mars Global Simulant
Availability: Available
Fidelity: Standard
Developed By: Colorado School of Mines
Available From: Simulants at Mines
Publications: Cannon, K. M., D. T. Britt, T. M. Smith, R. F. Fritsche, and D. Batcheldor (2019), Mars Global Simulant MGS-1: A Rocknest-based Open Standard for Basaltic Martian Regolith Simulants. Icarus, 317, 470-478.

The CSM-MGS-1 simulant carries on from the open standard for MGS-1 originally developed by Kevin Cannon. It is a Mars simulant modeled after the dusty soil called Rocknest analyzed at Gale crater by the Curiosity rover. The CSM version deviates slightly by using a basaltic feedstock rather than individual basaltic minerals (olivine, pyroxene, plagioclase, etc.). This allows for a significant cost savings, and may actually be more accurate because martian regolith should be made up of crushed basalt grains rather than separate grains of basaltic constituent minerals.

Modified versions include MGS-1S Sulfate ISRU and MGS-1C Clay ISRU, specifically designed for water extraction applications. The root CSM-MGS-1 simulant is appropriate to test water extraction from bulk regolith.

Refinement and testing are wrapping up before the simulant becomes more widely available for $3/kg.