Martian regolith simulant

Martian regolith simulant (or Martian soil simulant) is a terrestrial material that is used to simulate the chemical and mechanical properties of Martian regolith for research, experiments and prototype testing of activities related to Martian regolith such as dust mitigation of transportation equipment, advanced life support systems and in-situ resource utilization. == Variations == === JSC Mars-1 and JSC Mars-1A === After the Viking landers and the Mars Pathfinder's rover landed on Mars, the onboard instruments were used to determine the properties of the Martian soil at the landing sites.

Source: Wikipedia — Martian regolith simulant (CC BY-SA 4.0)