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Minerals are natural resources needed as raw material for setup and extension of settlements on Mars. From recent unmanned missions some valuable minerals have been found in the regolith, most of them by the Mössbauer spectrometer MIMOS II. The atmospheric dust contains minerals, which allows atmospheric mining.


Chemical formula: α-FeO(OH)

This mineral has been identified near the landing zones of the rovers Spirit and Opportunity, for example at "Columbia Hills". This mineral was probably created from iron under the influence of liquid water.


Chemical formula: α-Fe2O3

This mineral has been found at the landing zone of Opportunity. It is also suspected to be very common over the entire martian surface. Hematite is an iron ore, a source of Iron on Earth and should be on Mars as well.


Chemical formula: (Mg,Fe)2SiO4

This mineral has been found in Gusev Crater.


Calcium carbonate, magnesium, sodium, potassium, chloride and perchlorate have been found by the Phoenix lander (http://phoenix.lpl.arizona.edu/09_09_pr.php). Chloride, perhaps table salt, have also been found by Mars Odyssey.[1]